Appendix A Technical Specifi Cations - Michell Instruments MDM25 User Manual

Hygrometer
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APPENDIX A
Appendix A
Technical Specifi cations
HYGROMETER
Performance
Measurement Units
Mechanical Specifi cation
Ingress Protection
Hygrometer Housing Material
Weight
Display Resolution
Electrical Output/Input
Supply Voltage
Electrical Connections
PROBES
Performance
Measurement Range (RH)
Accuracy at 25ºC (77ºF)
Temperature
Stability - RH Sensor
Response time - RH Sensor
Measurement & Operating
Range (T)
- Fixed and Standard Probe
- Sword Probe
- Remote Probe
Accuracy at 25ºC (77ºF)
Humidity
- Fixed Probe
- Remote Probe
Mechanical Specifi cation
Weight
14
%RH, ºC / ºF Ta, ºC / ºF Td, g/m
IP54
Molded polymer housing ABS + rubber surround
300g (10.58oz)
Graphic LCD 128 x 64 pixels
4.5 V
(3 x 'AA' batteries - provide approximately 150 hours of operation)
M9 5-way binder connector
0 - 100% RH
±0.2ºC (±0.36ºF)
±1% RH/year
<10 sec typical (for 90% of the step change)
-20 to +80ºC (-4 to +176ºF)
-20 to +100ºC (-4 to +212ºF)
-20 to +150ºC (-4 to +302ºF)
±2% RH (10 - 90% RH)
±2% RH (5 - 95% RH)
Fixed Probe
Standard Probe
Sword Probe
High Temp 300mm Probe
High Temp 500mm Probe
MDM25 User's Manual
, ºC / ºF Tw
3
FPR
30g (1.06 oz)
SPR
90g (3.17 oz)
SWPR
500g (1.1 lb)
HTPR300
380g (13.4 oz)
HTPR500
620g (1.37 lb)
97234 Issue 4, January 2018

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