Red Phase · Earth testing
Red Phase 4025E Frequency Selective Multimeter
$135 per day ex GST, 1 to 7 days
Per day, AUD ex GST. The rate for your total hire length applies to every day, and the total never drops at a band change. Minimum hire one day. Australia-only hire; freight and handling quoted separately. Hiring for more than 90 days? Call for a long-term rate: 1300 730 499
Work out your hire
Pick your first and last day to see the hire charge.
| 7 days | $945 |
|---|---|
| 14 days | $1,701 |
| 28 days | $2,835 |
| 60 days | $5,520 |
- Delivery or collection
- Freight Australia-wide, quoted with availability, or collect from Hobart, Launceston, Adelaide or Newcastle. Urgent? Call 1300 730 499 rather than send the form.
- Datasheet
- Manufacturer's datasheet (PDF). Calibration certificate supplied with the instrument.
Overview
About the Red Phase 4025E Frequency Selective Multimeter
Description
The Red Phase 4025E Frequency Selective Multimeter is a precision instrument designed to measure voltage and current at a specific test frequency, typically used in conjunction with a Red Phase earth injection test set. It filters out noise and harmonics to provide accurate RMS readings of signals at the injected test frequency (usually 55–60 Hz), making it ideal for substation earth grid testing, step and touch voltage assessments, and current distribution measurements. Rugged and field-proven, the 4025E is widely used by power utilities and commissioning teams for verifying earth system integrity under simulated fault conditions.
Features
• Frequency-selective measurement tuned to 55–60 Hz test signals
• Accurately reads voltage or current while rejecting unrelated interference
• True RMS measurement ensures precision on injected signals
• Ideal for step, touch, and transfer voltage testing
• Designed to work alongside Red Phase 4024B/4023 earth injection systems
• Highly immune to power system noise and harmonics
• Clear digital display with stable readings even in harsh conditions
• Rugged, transportable housing for field and substation use
• Supplied with voltage probes and current clamps
Specifications
| Frequency range | 40 to 69 Hz, selectable in 0.1 Hz or 1 Hz steps |
|---|---|
| Voltage ranges | 20 mV, 0.2 V, 2 V, 20 V, 200 V, 800 V |
| Current ranges | Rogowski coil 0.2 A, 2 A, 20 A, 200 A; LEM probe 30 A, 300 A, 3,000 A |
| Accuracy | Magnitude error < 1%, phase error < 1 degree |
| Voltage input impedance | 1 MΩ, or 1 kΩ (or 1.5 kΩ) for step and touch measurements |
| Data storage | Up to 5,000 test records with time, date and GPS position, USB download |
| Power supply | Internal rechargeable 6 V 4.5 Ah lead-acid battery, approx. 7 to 8 hours per charge |
| Operating temperature | 0 to 45 °C |
| Size and weight | 345 x 300 x 150 mm, approx. 5.5 kg |
Manufacturer's published specifications. Your quote confirms the configuration supplied.
What’s in the case
- 4025E meter
- Voltage probes and input leads
- Operation manual
- Rugged case
- Optional, on request: current clamp
Calibration
All Megavar test equipment is maintained under a documented calibration programme. Instruments are calibrated either by external calibration laboratories or in-house against reference standards that are themselves laboratory-calibrated, with measurement traceable to Australian national measurement standards held by the National Measurement Institute. A current calibration certificate is available on request. If your project requires a specific calibration interval, test standard, or documentation for a client submission, tell us at enquiry on 1300 730 499 and we will confirm what applies before you commit.
Often hired with
Related Equipment For Hire
Why hire from Megavar
A Tailored Hire Experience That Works for You
At Megavar, our dedicated test equipment hire division provides high-quality electrical testing instruments for both short and long-term use. Our team makes sure you receive the right tools, ready to go, every time. From fast dispatch to door-to-door freight, our hiring process is streamlined to get you up and running quickly and confidently.
- Rapid delivery and collectionDoor-to-door freight for minimal downtime
- Fast, simple bookingsPlace an order and we’ll handle the rest
- Fault supportIf a set plays up, call us and we will arrange a fix or a replacement.
Our 3-step easy process
Hiring Made Easy in 3 Simple Steps
Step 1: Request a Quote
Submit your rental request online, and our team will respond promptly with availability and pricing.
Step 2: Organise Your Rental
Once confirmed, we’ll quickly process your booking and dispatch the equipment. Delivery and collection can be arranged to suit your schedule.
Step 3: Use with Confidence
Supplied with the manufacturer’s manuals. If a set plays up, call us and we will arrange a fix or a replacement.
How the hire works
Hire terms in brief
After you enquire
We confirm availability, rates and freight in a written quote, valid for the period it states (usually 14 days). An enquiry or quote does not reserve equipment: the hire is booked when your purchase order, signed quote or email acceptance reaches us.
Hire period
Our carrier: up to 72 hours of transit each way is not charged as hire. Hire starts at delivery or 72 hours after dispatch, whichever is earlier, and ends at handover to our carrier or 72 hours before the equipment arrives back, whichever is later. Delay caused by us or our carrier is not charged. For example, dispatched Monday 10am and delivered Wednesday 2pm: hire starts Wednesday 2pm. Routes that normally take longer than 72 hours are marked on the quote. Your own freight: hire runs from handover to your carrier at our office until the equipment arrives back at our office. Collect in person: from collection to return.
Extensions and early return
Contact us before the return deadline to extend; your quoted rates stay fixed and extended hire is invoiced every 7 days. Return early and you pay only for the days used, at the rate band for the days actually hired.
Delivery and returns
Freight for each leg, the handling fee and any express dispatch are on the quote, before you accept. Returns go to the dispatching office named on the quote, by carrier or in person, never by post.
Counter times
Returned to our counter before 9am on a business day counts as the previous day. Collected after 4pm on a business day, hire starts the next day. Weekends and public holidays count as hire days.
Calibration and checks
Supplied in working order with listed accessories, leads and manuals. Each measuring instrument is calibrated, and its current NATA-traceable calibration certificate is available on request. If calibration falls due during your hire, we tell you before dispatch.
Cancelling or moving a booking
Cancel 5 or more business days before dispatch or collection and nothing is charged. With 2 to 4 business days’ notice, the charge is the greater of one day’s hire and 5% of the booked hire; with less notice, the greater of one day’s hire and 10%. You can ask once to move the start by up to 30 days, with at least 2 business days’ notice.
Loss, damage and insurance
The equipment is your responsibility, other than fair wear and tear, from the start of hire until it is back with us, including in transit, up to the replacement value cap shown on the quote for each item. No damage waiver is offered. We recommend you insure the equipment for its replacement value.
Payment and bond
Account customers pay each invoice within 14 days. Without a credit account, or paying by card, you pay the booked hire, freight, handling fee and any bond before dispatch. A bond applies only where the quote states one, and is refunded after return and inspection, less anything owed.
Summary of our Terms and Conditions: Test Equipment Hire. Full hire terms
Downloads
Enquire about Red Phase 4025E Frequency Selective Multimeter Hire
When and where do you need it?
Send your hire dates and delivery location and we will confirm availability and lead time by the end of the next business day.
Or call us directly on 1300 730 499
Need help with your rental?
1300 730 499 We’re available Monday to Friday, 8:30 am to 5:00 pm. Urgent hire: call rather than send the form. rentals@megavar.com.auQuestions about this hire?
Call 1300 730 499 for availability, rates and booking. If a set plays up during the hire, call us and we will arrange a fix or a replacement. Counter collection and returns 8:30 am to 5:00 pm, Monday to Friday.
FAQ
Frequently Asked Questions
Red Phase 4025E Frequency Selective Multimeter
What is the 4025E used for?
It’s used to accurately measure test voltages or currents during earth grid tests where an injected signal (usually 55–60 Hz) is applied. It ensures readings reflect the injected signal only, not background power system noise.
Why is frequency selectivity important?
Power system environments are electrically noisy. The 4025E isolates and measures only the test signal frequency, avoiding measurement errors from harmonics, switching noise, or nearby live equipment.
What kinds of tests use this meter?
• Step and touch potential testing
• Transfer voltage measurement
• Substation earth grid integrity tests
• Current distribution across structures or electrodes
Does it work with any injection set?
It is optimised for use with Red Phase 4024B + 4023 injection sets, but it can be used with other frequency injection sources operating at the correct test frequency (typically ~58 Hz).
Can it measure both voltage and current?
Yes. It comes with voltage probes and current clamps, allowing it to measure either parameter, depending on the setup.
Is it suitable for field use?
Absolutely. It is built into a robust portable enclosure, suitable for use in substations, switchyards, and outdoor environments.
What’s included in the rental?
• Red Phase 4025E meter
• Voltage probes and input leads
• Current clamp (optional)
• Operation manual and rugged case
• (Optional) test frequency configuration support
What support comes with the hire?
Each instrument is supplied with the manufacturer’s manuals. If a set plays up, call us and we will arrange a fix or a replacement.
What’s the minimum rental period?
The minimum hire is one day. The daily rate steps down for hires of 8 days or more, and longer project hires can be quoted on 1300 730 499.
Do you deliver nationwide?
Yes. We provide Australia-wide delivery and collection, or you may arrange your own freight.
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