Apollo IMY Marine Instruments User Manual


 
15. ENVIRONMENTAL CONDITIONS:
Operating Temperature Range: 0 to 50°C
Storage Temperature Range: -40 to 80°C
Operating and Storage Humidity: 85% max. relative humidity
(non-condensing) from 0°C to 50°C.
Altitude: Up to 2000 meters
16. SERIAL COMMUNICATIONS (Optional):
Isolation To Signal Input Common: 500 Vrms for 1 min.
WorkingVoltage:50Vmax.,CATI
Not isolated from all other commons.
Type: Bi-directional 20 mA current loop, 20 mA source provided on
transmit loop. (Powers up to 7 units in a loop with internal current
source).
Baud Rate: programmable 300 to 2400
Maximumaddress:99(Actualnumberinasingleloopislimitedbyserial
hardware specifications.)
Data Format: 10 bit frame, Odd parity (one start bit, 7 data bits, one odd
parity bit, and one stop bit.)
Serial Hardware Specifications:
SO-OutputTransistorRating:V
max
=30VDC,V
SAT
=1V
max
at20mA.
Note: This will allow up to 28 units maximum in each loop.
SI - Input Diode Rating: V
F
= 1.25 V
TYP
; 1.5 V
MAX
Note:The compliancevoltagerating ofthe sourcemust begreater
thanthe sumof the voltagedrops aroundthe loop. (Typically a 30
VDC powered source would be capable of operating between 18
and 22 units in a loop.)
17. ALARMS (Optional):
Solid State: Two, isolated, sinking open collector NPN transistors acting in
parallelwithrelays. Imax:100mA. V
SAT
=1.0V@100mA. Vmax:30VDC.
Isolation To Signal Input Common: 500 Vrms for 1 min.
WorkingVoltage:50Vmax.,CATI
Not isolated from all other commons.
Relays:
Isolation To Signal Input Common: 2300 Vrms for 1 min.
WorkingVoltage:300Vmax.,CATII
Type: Form C (2)
Max.Rating: 5 Amps@ 120/240 VACor 28 VDC(resistive load), 1/8
hp @ 120 VAC (inductive load).
Relay Life Expectancy: 100,000 cycles at max. rating. (As load level
decreases, life expectancy increases.)
18. ANALOG OUTPUT (Optional): Digital scaling and offsetting
Isolation To Signal Input Common: 500 Vrms for 1 min.
WorkingVoltage:50Vmax.,CATI
Not isolated from all other commons.
4to20mA:
Accuracy: 0.1% of full scale
Resolution: 12 bits
Compliance Voltage: 10 VDC (500 W max. loop resistance)
0 to 10 VDC:
Accuracy: ±(0.1% of reading + 35 mV)
Resolution: 12 bits
Min. Load Resistance: 10 KW (1 mA max.)
19. PEAK/VALLEY/SLOPE/OFFSET (Optional):
Peak and Valley recording. Programmable temperature offset and slope.
-39-