CU Reference Box for Emcee Model 1152

On-Site Electronic Verification for the Emcee Model 1152 Digital Conductivity Meter

Verify the electrical performance of your Emcee Model 1152 conductivity meter on site with the CU Reference Box – no shipping, no downtime between calibrations.

Product Overview

The CU Reference Box is a precision reference accessory that lets you confirm your Emcee Model 1152 Digital Conductivity Meter is reading correctly – at your own facility, in under five minutes, without shipping the instrument anywhere.

It replaces the meter’s probe with a known, certified conductivity value. Press the M switch, and the meter should read that value within ±2%. If it does, your electronics are sound. If it doesn’t, you’ve found the problem in your lab instead of on the ramp.

Each CU Reference Box ships with a certificate of calibration operates either at 100pS/m or 500pS/m.

What the CU Reference Box Does – and What It Doesn't

It does: confirm that your Model 1152’s electronics and circuitry are functioning correctly against a known reference value. It gives you a fast, repeatable functional check you can run as often as your quality program requires – daily, before a critical transfer, or after an instrument is dropped or exposed to weather.

It does not: calibrate your meter, adjust it, or extend your factory calibration interval. The CU Reference Box is a verification tool, not a calibration standard. Your Model 1152 still requires periodic calibration in an ISO/IEC 17025 laboratory, and the CU Reference Box itself must be kept current in its own calibration for accurate readings.

If a fuel sample gives you an unexpected reading, the CU Reference Box helps you quickly verify the meter, so you can determine whether the issue is with the fuel or the instrument. Think of it as the check between calibrations—not a replacement for one.

Digital conductivity meter displaying readings next to a metal pipe and Emcee Conductivity Unit CU.

Quick Verification with the CU Reference Box

For complete instructions, refer to Test Procedure TP-2032. At a high level, verification involves:

Check your reference values. Note the rated CU value on the CU Reference Box and the probe number assigned to your meter.
Verify the meter and probe. Use the meter’s built-in checks to confirm the expected probe setting and zero reading.
Connect the CU Reference Box. Remove the probe, connect the Reference Box, and take a reading.
Confirm the result. Compare the meter reading with the Reference Box’s rated value using the correction chart provided for your probe number. The reading should be within ±2% of the expected value.

Important: Probe numbers are not interchangeable. Always use the probe that matches the meter’s designated probe number. Do not connect or substitute a probe with a different probe number. When the correct matching probe is used, the meter will provide the proper conductivity reading for the fuel.

Why It Matters

Catch a failing instrument before it costs you.
A Model 1152 that has drifted or failed electronically will still return a number. The CU Reference Box is how you find out that number is wrong – before it ends up on a release certificate.

No shipping, no waiting, no gap in testing.
Verification happens at your facility, on your schedule. Your meter never leaves the site and your testing schedule is never interrupted.

Documented, repeatable checks.
Each box ships with a certificate of calibration, giving your quality program a defensible record of routine instrument verification between factory calibrations.

Simple enough for any technician.
No software, no configuration, no training curve – attach, press M, compare to the chart.

Jet engine against a clear blue sky, showcasing its sleek design and powerful structure.

Who Uses It

Aviation fuel handlers, refineries, fuel terminals, and into-plane operators running ASTM D2624, IP 274, or ISO 6297 conductivity testing – anywhere a Model 1152 result feeds a fuel release decision and instrument confidence has to be demonstrable.

Also used by industrial and process labs monitoring conductivity in paints, inks, coatings, and solvents.

Frequently Asked Questions

What is a CU Reference Box?

A CU Reference Box is a certified reference accessory for the Emcee Model 1152 Digital Conductivity Meter. It presents the meter with a known conductivity value in place of the probe, so you can confirm the instrument's electronics are reading correctly without sending it to a service depot.

Does the CU Reference Box calibrate my Model 1152?

No. It verifies that the meter is working electronically. It does not calibrate or adjust the instrument, and it does not extend your factory calibration interval. Your Model 1152 still requires periodic calibration in an ISO/IEC 17025 laboratory.

How accurate does the reading need to be?

The meter should read the CU Reference Box's rated value within ±2%, after applying the correction chart for your probe number. A reading outside that range indicates the meter needs attention.

How often should I use it?

As often as your quality program requires. Common practice is a routine check on a set schedule, plus verification if you receive unexpected reading, or any time an instrument is dropped, exposed to liquid, or returned from the field.

Does the CU Reference Box itself need calibration?

Yes. Both the Model 1152 and the CU Reference Box must be current in their annual calibration for a verification check to be accurate. Each box ships with a certificate of calibration.

How do I get a CU Reference Box?

Contact your local Emcee distributor or request a quote. For a limited time, a CU Reference Box is included free with every qualifying Model 1152 trade-in upgrade.

Keep your conductivity program verifiable.

Request a quote for a CU Reference Box, or ask about the Model 1152 trade-in upgrade that includes one at no charge.

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Specifications

Specification	Detail
Compatible instrument	Emcee Model 1152 and 1154 Digital Conductivity Meter
Function	Electronic verification of meter and circuitry
Reference values	100 and 500 pS/m
Verification tolerance	Meter should be within ±2%
Supplied Documentation	Certificate of calibration
Recalibration interval	Annual Calibration Recommended
Connection	Attaches in place of detachable stainless-steel probe

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