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| INSTRUCTIONS FOR USE
OMD 202RS
TECHNICAL DATA
11.
INPUT
Protocol:
ASCII, MessBus, Modbus RTU, PROFIBUS DP
Data format:
8 bit + no 1 stop bit (ASCII)
7 bit + even 1 stop bit (MessBus)
Universal
protocol
Rate:
600…230 400 Baud
9 600…12 000 KBaud (PROFIBUS)
RS 232:
isolated, two-way communication
RS 485:
isolated, two-way communication,
addressing (in range 1…247)
PROJECTION
Display: 999999,
4 (100/125 mm) or 6 digit (57/100/125 mm)
Three-color 7 segment LED - red/green/orange
High bright singles LED - red or green
(1300
mcd)
Projection:
-999…9999 or -99999…999999
Decimal point:
adjustable - in menu
Brightness:
adjustbale - in menu
INSTRUMENT ACCURACY
Linearisation:
by linear interpolation in 50 points
- solely via OM Link
Digital filters:
Averaging, Floating average, Exponential filter,
Rounding
Functions:
Tare - display resetting
Hold - stop measuring (at contact)
Lock - control key locking
MM - min/max value
Mathematic
functions
OM Link:
company communication interface for setting,
operation and update of instrument SW
Watch-dog:
reset after 400 ms
Calibration:
at 25°C and 40 % of r.h.
COMPARATOR
Type:
digital, adjustable in menu
Mode:
Hysteresis, From, Dosing
Limita: -99999…999999
Hysteresis:
0…999999
Delay: 0…99,9
s
Outputs:
4x relays with switch-on contact (Form A)
(230 VAC/30 VDC, 3 A)*
4x open collectors (30 VDC/100 mA)
Relay:
1/8 HP 277 VAC, 1/10 HP 125 V, Pilot Duty
D300
ANALOG OUTPUT
Type:
isolated, programmable with 12 bits D/A con-
vertor, analogoutput corresponds with displayed
data, type and range are adjustable
Non-linearity:
0,1 % of range
TC: 15
ppm/°C
Rate:
response to change of value < 1 ms
Voltage:
0…2 V/5 V/10 V/±10 V
Current:
0…5/20 mA/4…20 mA
- compensation of conduct to 500 Ω /12 V
or 1 000 Ω/24 V
EXCITATION
Adjustbale:
5/12/17/24 VDC/max. 2,5 W, isolated
POWER SUPPLY
Options:
10…30 V AC/DC, max. 27 VA, isolated
PF ≥ 0,4, I
STP
> 75 A/2 ms
fuse inside (T 4A)
80…250 V AC/DC, max. 27 VA, isolated
PF ≥ 0,4, I
STP
> 475 A/2 ms
fuse inside (T 4A)
MECHANIC PROPERTIES
Material:
anodized aluminum, black
Dimensions:
see chapter 12
Panel cut-out:
see chapter 12
OPERATING CONDITIONS
Connection:
through cable bushings to terminal boards inside
the instrument, conductore section up to
< 1,5 mm
2
/< 2,5 mm
2
Stabilisation period: within 15 minutes after switch-on
Working temp.:
-20°…60°C
Storage temp.:
-20°…85°C
Cover: IP64
Construction:
safety class I
Overvoltage cat.: EN 61010-1, A2
Dielectric strength: 4 kVAC after 1 min between supply and input
4 kVAC after 1 min between supply and analog
output
4 kVAC after 1 min between supply and relay
output
2,5 kVAC after 1 min between supply and analog
output
Insulation resist.:
for pollution degree II, measurement cat. III
instrum.power supply > 670 V (PI), 300 V (DI)
Input/output > 300 V (PI), 150 (DI)
EMC: EN
61326-1
* values apply for resistance load
PI - Primary insulation, DI - Double insulation