Fairbanks 2800 Series Intrinsically Safe Instrument - Manual (Page 13)

Section 1: General Information
01/12 13 50647 Rev. 9
1.3. ACCESSORIES, CONTINUED
1.3.8. ACCESSORY 2860 SAFE AREA DATA CONVERTER
( 20523 )
 This accessory is service programmable and configurable for RS232 or 20mA
data outputs.
 This accessory can also be configured to provide a 4-20 ma analog output.
 Enclosure: NEMA 4; Fiberglass
 4 -20 ma Specifications: 16 bit resolution (+/- .01 integral linearity)
 Current loop voltage compliance: 7vdc minimum to 40vdc maximum (typical
voltage = 24vdc)
 Full scale settling time: 8msecs
 Output impedance: 25 meg
 Alarm current: 3.5 to 24 mA (underload/overload conditions)
─ Offset @ 25 degrees C; +/- .1% of full scale
 Offset drift: +/- 25ppm of full scale per degree C
 Total output error: 20mA @ 25 degrees C: +/- .2% of full scale max
 Total output drift: +/- 50ppm of full scale per degree C-max
1.3.9. ACCESSORY 2875 INTRINSICALLY SAFE
INTERCONNECTION CABLE ( 21737 )
 This is the only approved cable for interconnecting the Accessory 2802, and
for connecting to the Model 2800 to the Accessory 2850.
 Specifications: 2 pair - 16AWG; 0.48" O.D.
C A U T I O N
The 4-20ma accessory is a passive device!
The power is to be supplied by others, and MUST
BE
a DEDICATED and an ISOLATED power supply.