Tramex calibration check plate for CM series concrete moisture meters
A reference plate that lets you confirm a non-invasive concrete moisture meter is reading correctly before you rely on it.
Fitment
- Tramex CME5 Concrete Moisture Encounter
- Tramex CMEX5 Concrete Moisture Encounter X5
- Tramex CME4
- Tramex CMEX2
Why a non-invasive meter needs checking more than a pin meter does
A pin meter tells you when it is broken — the reading goes to zero or refuses to settle. An impedance scanner does not. It keeps producing plausible numbers after a knock, and the only way to know is to put it on a known reference. If your readings are going into a flooring decision, check the meter at the start of the job and note that you did.
The equivalent for the moisture encounter range is the ME5 calibration check box; for MRH series meters it is the MRH3 calibration check box.
Why check, and when
These instruments do not drift dramatically – they drift quietly. A meter that has been dropped, left in a hot vehicle, or simply worked hard for a couple of years can read consistently and still read wrong, and nothing on the display tells you. A check before a job whose readings go into a report, an insurance claim or a compliance certificate costs a minute and protects the reading you are prepared to sign your name to.
A check box confirms the meter reads correctly. It is not a calibration adjustment – if a meter fails its check, it needs to go back for service.
Which calibration check suits which meter
| Check device | For |
| CALBOXME5 check box | ME5 Moisture Encounter |
| CALBOXSMM5 check box | SMM5 Skipper 5 |
| MRH series check box | MRH series, including MRH3 |
| CALCRH check plate | CM series concrete meters – CME5, CMEX5 |
| Calibration check plugs, set of 3 | Probe ports on the CMEX2 and MRH3 |
| SAL75 75% salt check | Hygro-i2 relative humidity probes |
Impedance meters and RH probes are checked differently. An impedance meter is verified against a reference box or plate of known value; an RH probe is verified in a sealed salt chamber at a known humidity. One does not substitute for the other, and a meter that takes RH probes needs both.
Not sure which check device suits your meter? Tell Carpet Cleaners Warehouse the model and we will confirm before you order.
