SSI America 7SL Calibration Procedure, General Guidelines, Calibration Parameters

+0.005% output

+0.001% range

+5 mV

+0.02%

+0.0025 Ω decade better than 0.1°C 0.1 mA AC rms

1 mV

10 mΩ

better than 0.1°C 0.1 mA AC rms

CALIBRATION PROCEDURE

Calibration parameters are logically divided into groups of two parameters each – initial scale value and final scale value. A calibration check is provided after entering the values of each group. It is also possible to perform a calibration check without making an entry: press the FUNC button twice when “OFF” is displayed. The instru- ment goes directly to the group check.

Before beginning calibration, be sure the internal DIP switch V101 is open.

WARNING: Perform the calibration procedure according to J106 jumper positions as shown in Figure 1. Other- wise, the stored calibration values may be lost.

Input Type		J106
	1-2	3-4	5-6	7-8
T/C, RTD,
0-60 mV, 12-60 mV	close	open	open	open
(standard configuration)
0-5 V, 1-5V	open	close	open	open
0-10V, 2-10 V	open	open	close	open
0-20 mA, 4-20 mA	open	open	open	close
Input CTTC R192=180K
SH120=Closed CH101=Open
Figure 1.	J106 Settings

General Guidelines

a)The instrument should be mounted in its case in order to keep the internal temperature constant.

b)Ambient temperature should be stable. Avoid drift due to air conditioning or other mechanical devices.

c)Relative humidity should not exceed 70%.

d)Minimum warm up time of at least 20 minutes.

e)Operate as much as possible in a noise free environment.

f)during calibration, connect one input at a time to the rear terminal block.

g)Use calibrators with the following:

Accuracy

TC Input:

RTD Input:

CJ Compensation:

Current Transformer:

Resolution

TC Input:

RTD Input:

CJ Compensation:

Current Transformer:

Calibration Parameters

Following is a complete list of calibration symbols: Code Parameter

tL	TC Input Initial Scale Value
tH	TC Input Final Scale Value

t.TC Input Check

rJ	Cold Junction Compensation
rJ.	Cold Junction Compensation Check
PL	RTD Input Initial Scale Value
PH	RTD Input Final Scale Value

P.RTD Input Check

AL	Current Input Initial Scale Value
AH	Current Input Final Scale Value

A.Current Input Check

nL	5	Volt Input Initial Scale Value
nH	5	Volt Input Final Scale Value

n.5 Volt Input Check

UL	10	Volt Input Initial Scale Value
UH	10	Volt Input Final Scale Value

U.10 Volt Input Check

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