Teledyne M300EM operation manual Analog Outputs: Current Loop

Teledyne API – Technical Manual - Model 300E Family CO Analyzers Troubleshooting & Repair

13.5.7.3.Analog Outputs: Current Loop

To verify that the analog outputs with the optional current mode output are working properly, connect a 250 ohm resistor across the outputs and use a voltmeter to measure the output as described in Section 7.4.3.4 and then perform an analog output step test as described in Section 13.5.7.2.

For each step the output should be within 1% of the nominal value listed in the table below.

Table 13-11: Analog Output Test Function - Nominal Values Voltage Outputs

				OUTPUT RANGE
			2 -20			4 -20
				NOMINAL OUTPUT VALUES
STEP	%	CURRENT		V(250 OHMS)	CURRENT	V(250 OHMS)
1	0	2 mA		0.5V	4	1
2	20	5.6		1.4	7.2	1.8
3	40	9.2		2.3	10.4	2.6
4	60	12.8		3.2	13.6	3.4
5	80	16.4		4.1	16.8	4.2
6	100	20		5	20	5

04288D DCN5752 295