18. SERIAL COMMUNICATIONS (Optional):
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
Maximum address: 99
(Actual number in a single loop is limited by serial
hardware specifications.)
Data Format: 10 bit frame, Odd parity
(one start bit, 7 data bit, one odd
parity bit, and one stop bit.)
Serial Hardware Specifications:
SO - Output Transistor Rating: V
max
= 30 VDC,
V
sat
= 1 V
max
at 20 mA.
Note: This will allow up to 28 units max. in each loop.
SI - Input Diode Rating: V
F
= 1.25 V
typ
; 1.5 V
max
Note: The compliance voltage rating of the source must be greater than the
sum of the voltage drops around the loop. (Typically a 30 VDC powered
source would be capable of operating between 18 and 22 units in a loop.)
19. ALARMS (Optional):
Solid State: Two, isolated, sinking open collector NPN transistors acting
in parallel with relays. V
SAT
= 1 V @ 100 mA max. V
MAX
= 30 VDC.
Relays:
Type: Form C (2)
Max. Rating: 5 Amps @ 120/240 VAC or 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.)
20. ANALOG OUTPUT (Optional): Digital scaling and offsetting.
4 to 20 mA:
Accuracy: 0.1% of full scale
Resolution: 12 bits
Compliance Voltage: 10 VDC
(500
W
max. loop impedance)
0 to 10 VDC:
Accuracy: ±(0.1% of r35 mV)
Resolution: 12 bits
Min. Load Resistance: 10 K
W
(1 mA max.)
21. LINEARIZER/PEAK/VALLEY/TARE:
9-segment multiple slope scaling for non-linear inputs. Peak and Valley
recording. Signal re-zero
(tare)
.
22. CERTIFICATIONS AND COMPLIANCES:
SAFETY
IEC 1010-1, EN 61010-1: Safety requirements for electrical equipment for
measurement, control, and laboratory use, Part 1.
IP65 Enclosure rating (Face only), IEC 529
Type 4 Enclosure rating (Face only), UL50
ELECTROMAGNETIC COMPATIBILITY
Immunity to EN 50082-2
Electrostatic discharge
EN 61000-4-2
Level 2; 4 Kv contact
1
Level 3; 8 Kv air
Electromagnetic RF fields
EN 61000-4-3
Level 3; 10 V/m
2
80 Mhz - 1 GHz
Fast transients (burst)
EN 61000-4-4
Level 4; 2 Kv I/O
Level 3; 2 Kv power
RF conducted interference
EN 61000-4-6
Level 3; 10 V/rms
150 Khz - 80 MHz
Power frequency magnetic fields
EN 61000-4-8
Level 4; 30 A/m
Simulation of cordless telephones ENV 50204
Level 3; 10 V/m
900 Mhz, ±5 MHz
200 Hz, 50% duty cycle
Emissions to EN 50081-2
RF interference
EN 55011
Enclosure class A
Power mains class A
Notes
:
1. Metal bezel of unit connected with ground lead from rear bezel screw to metal
mounting panel.
2. Unit complies with listed specifications at 10 V/m and 10 Vrms when installed
as follows:
a. Install power line filter, RLC#LFIL0000 or equivalent.
b. Install unit in a Buckeye SM 7013-0 enclosure or equivalent.
c. Install all I/O cables connecting to the unit in metal conduit that is
connected to the enclosure at one end, and earth ground at the opposite end.
Refer to the EMC Installation Guidelines for additional information.
23. CONSTRUCTION: Die-cast metal front bezel that meets NEMA 4/IP65
requirements for indoor use when properly installed. Installation Category
II, Pollution Degree 2. Case body is black, high impact plastic (panel
gasket and mounting clips included).
24. CONNECTION: Removable terminal blocks
25. WEIGHT: 1.2 lbs.
(0.6 kg)
-42-
