Atmi Modules - Ametek Crystal HPC51 Operation Manual

ATMi Modules

TEMPERATURE MEASUREMENT
Accuracy: . . . . . . . . . . . . . . . . . . . . . . . . ±(0.015% of rdg) + 0.02 Ohm
Range: . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 400 Ohms
Resolution: . . . . . . . . . . . . . . . . . . . . . . 0.01 on all scales
Units: . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C, K, °F, R, Ω
TCR: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003850 Ω/Ω/°C (IEC 60751)
Wiring: . . . . . . . . . . . . . . . . . . . . . . . . . . 4-wire support
Includes all effects of linearity, hysteresis, repeatability, temperature,
and stability for one year .
Combine with part number 127387 for a -45 to 150° C temperature
sensor . Contact us to add a calibration certificate .
OUTPUT
Temperature Resolution . . . . . . . . . 0.01
Display Update . . . . . . . . . . . . . . . . . . up to 10 per second
Temperature resolution and display update are the maximum values
available . The resolution of your Crystal device may be different .
The proper selection of the RTD sensing element is very important as the error associated with this device is the majority of the overall system measurement uncertainty . IEC 751 is the
standard that defines the temperature versus resistance for 100Ω, 0 . 0 0385 Ω/Ω/°C platinum RTDs . IEC 751 defines two classes of RTDs: Class A and B . Class A RTDs operate over the -200 to
630°C range versus -200 to 800°C for the Class B elements . For example, the Class A uncertainty is about half that of the Class B elements as illustrated in the following table .
HPC50/ATMi Class A
Temperature
Uncertainty Uncertainty
°C
±Ω ±°C ±Ω
-200 0.02 0.05 0.24
-40 0.03 0.08 0.09
0 0.04 0.09 0.06
50 0.04 0.10 0.10
100 0.04 0.11 0.13
150 0.04 0.12 0.17
200 0.05 0.13 0.20
400 0.06 0.17 0.33
600 0.07 0.21 0.43
800 0.08 0.25 0.52
COMMUNICATION
Connector . . . . . . . . . . . . . . . . . . . . . . . 6-pin LEMO
Serial . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS-422, 9600 baud, 8 data,
Protocol . . . . . . . . . . . . . . . . . . . . . . . . . ASCII command language
OPERATING TEMPERATURE
Temperature Range . . . . . . . . . . . . . . -20 to 50° C (-4 to 122° F)
< 95% RH, non-condensing . No change in accuracy over operating
temperature range . Gauge must be zeroed to achieve rated
specification .
Applies to all modules .
STORAGE TEMPERATURE
Temperature Range . . . . . . . . . . . . . . -40 to 75° C (-40 to 167° F)
Class A
HPC50/ATMi + Class A Class B
Uncertainty Uncertainty
±°C ±Ω ±°C ±Ω
0.55 0.24 0.55 0.56
0.23 0.10 0.24 0.20
0.15 0.07 0.17 0.12
0.25 0.10 0.27 0.21
0.35 0.14 0.37 0.30
0.45 0.17 0.46 0.39
0.55 0.21 0.56 0.48
0.95 0.33 0.96 0.79
1.35 0.44 1.37 1.06
1.75 0.53 1.77 1.28
ENCLOSURE
Dimensions . . . . . . . . . . . . . . . . . . . . . . 2.5 x 1.1 in (63.3 x 27.0 mm)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . 0.31 lbs (141.0 g)
no parity, 1 stop
6 PIN CONNECTION
Class B
HPC50/ATMi + Class B
Uncertainty
±°C ±Ω ±°C
1.30 0.56 1.30
0.50 0.20 0.51
0.30 0.12 0.31
0.55 0.22 0.56
0.80 0.31 0.81
1.05 0.39 1.06
1.30 0.48 1.31
2.30 0.79 2.31
3.30 1.06 3.31
4.30 1.28 4.31
FOR REMOTE
TEMPERATURE
PROBE
63.3
(2.49)
6 PIN CONNECTION
FOR HPC50 SERIES CABLE
HPC50 Series Operation Manual
ATMi Modules 22

Ø 27
(1.06)