www.miinet.com
Moore Industries-International, Inc.
- 14 -
User’s Manual
224-790-00K
May 2018
Moore industries-International, Inc.
Section 2 - Calibration and Bench Check
It is recommended that you perform a bench check on your instruments prior to installing them in
your application.
Calibration
A true calibration of the SPA
2
can only be performed at Moore Industries using specialized
equipment. We recommend that you check the calibration every year and re-calibrate only when
necessary.
However, input trimming increases the measurement accuracy of your instrument by matching the
reading of its actual input to its scaling. The SPA
2
offers the use of a factory-configured trimming
feature (‘FCTRY TRIM”) or user-set, one-point or two-point (“USER 1 PNT” or “USER 2 PNT”)
trimming.
Please refer to Section 4 of this manual for instructions to perform Input Trimming via the push button
panel or Section 5 using the PC Configuration Software. Likewise, output trimming increases the
measurement accuracy of the SPA
2
by calibrating its analog output to the device that is receiving the
output. This ensures that the instrument’s input is being correctly interpreted.
Please refer to Section 4 of this manual for instructions to perform Output Trimming via the push
button panel or Section 5 using the PC Configuration Software.
Table 2.1.
Necessary Equipment for Bench Checking the SPA
2
(HLPRG)
Device
Specifications
Power Supply
Multimeter
21.6 - 175 Vdc or 90-260Vac
Accurate to ±0.009% of span; e.g., HP Model 3478A
Current and/or Voltage
Variable; Accurate to ±0.05% of unit span
Table 2.2.
Necessary Equipment for Bench Checking the SPA
2
(TPRG)
Device
Specifications
Power Supply
Multimeter
21.6 - 175 Vdc or 90-260Vac
Accurate to ±0.009% of span; e.g., HP Model 3478A
Variable Input Simulator for
Thermocouple, RTD, Millivolt,
Potentiometer, or Decade
Resistance Box
Variable; Accurate to ±0.05% of unit span
Programmable Limit Alarm Trips
SPA
2
SECTION 2
