Specification Of Rtd Channels - ACR Electronics SmartReader Plus Reference Manual

For the internal channel, use equation 45
For the 100 ohm probes, use equation 86
For the 1000 ohm probes, use equation 87
For results in resistance (ohms):
For the internal channel, use equation 45
For the 100 ohm probes, use equation 84
For the 1000 ohm probes, use equation 85
NOTE: Even equation numbers are for 100 W probes and odd equation
numbers are for 1000 W probes.
4. Adjust the remaining setup options as desired then save the setup.
1.13.3

Specification of RTD Channels

The following specifications are for:
4-Wire Platinum 100 Ohm @ 0° C & TCR = 0.00385
4-Wire Platinum 1000 Ohm @ 0° C & TCR = 0.00385
Description:
+SIG Input Impedance:
-SIG Input Impedance:
Excitation Current
Temp. Range
(100 & 1000 W probes):
Accuracy ** (100 & 1000 W):
Resolution (100 W & 1000 W): ± 0.14°C (±0.25°F)
Resistance Range (100 W):
Accuracy ** (100 W):
Resistance Range (1000 W):
Accuracy ** (1000 W):
Resolution (100 W):
Resolution (1000 W):
* For internal channel specifications, please see
SmartReader Plus loggers
** Temperature compensated for the range of -20 to 80°C (-4 to 176°F)
Copyright © 2010 ACR Systems Inc. All Rights Reserved.
SmartReader Plus Data Logger
Value:
>1 Meg. ohms
>1 Meg. ohms
<=1mA
-230 to 300°C (-382 to 572°F)
± 0.3°C (0.54°F) + resolution or
± 0.06 % full scale + resolution
5 to 210 W
± 0.13 W + resolution or
± 0.06 % full scale + resolution
50 to 2100 W
± 1.3 W + resolution or
± 0.06 % full scale + resolution
± 0.05 W
± 0.5 W
Common Specifications
66
for