Product
Universal LED display / Alarm unit type M2118
Minh Quan Technology Joint Stock Company
Hotline: 01692 114 683
Mr Que: 0973 852 363
Ms Ha: 0165 2197 433
Email: mqtekvietnam@gmail.com
Call usProduct information
- input: 0/4…20mA, 0…10V, Pt-100, special conversions
- 2 alarm contacts
- 4-digit LED display, 10mm
- programmable
- push buttons for device settings
- optionally current output 0/4…20mA, galvanic isolated
- power supply 20 to 253VAC/DC, galvanic isolated
- rail mounting
Product Details
The alarm unit M2118 is used to check or control any type of signal current or voltage signal. It converts the input signal to an internal standard signal of for example 0 to 100.0%. In this range two alarm contacts can be set independently. A 4-digit LED display shows the actual value and setpoints or alarm values in the range of -1999 to 9999 units.
All settings as alarm values, hysteresis, range and operating mode of the floating contacts can be set with a link cable, connected to a personal computer or a laptop.
Both alarm contacts can also be programmed with tiny push button switches.A typical application would be to measure and monitor pressure in a process vessel. The pressure transmitter converts the pressure of 1 to 10 bar to a current signal of 4 to. 20mA. The M2118 monitors under- and overpressure in the vessel. It converts the 4… 20mA signal current to 0…100.0%. The alarm is set between 0% (=1 bar) and 100.0% (=10 bar). With these floating alarm contacts, overpressure valves, compressors, etc. are driven directly.
Optionally, a galvanic isolated output signal of 0…20mA or 4…20mA is available.
Power supply: Universal supply 20 to 253VAC/DC
Specifications
| Input signal: | 0/4…20mA/0…1V and 10V, programmable | |
| Input load / impedance: | current signal=51 , voltage signal=1MΩ | |
| 2-Wire transmitter supply | 24VDC max. 25mA | |
| Display: | 4-digit, LED red, 10mm | |
| Display range: | -1999…9999 | |
| Accuracy | ±0.1% at 23°C ambient temperature | |
| Reproducibility | ±0.1% | |
| Temperature coefficient | Zero drift: 30ppM/°C typical,
Gain drift: 25ppM/°C typical |
|
| Long-term stability | ±0.1% | |
| Working temperature range: | -5 to +45°C | |
| Maximum humidity | 95%, non-condensing | |
| Range adjustment: | by computer programmable, see manual | |
| Zero-/Gain adjustment: | by computer programmable, see manual | |
| Alarm contacts:
Hysteresis: |
Two adjustable between 0,0 and 100,0%
by computer programmable, factory set: ±5 digit see manual oating change over contacts |
|
| Max. contact load | 1A/230V resistive | |
| Change alarm contacts: | by button switches or computer programmable, see manual | |
| Display alarm contacts: | by button switches or computer programmable, see manual | |
| Mode of the alarm contacts: | with two red LED-Lamps | |
| Display unit: | with two red LED-Lamps | |
| Option current output:
Max. load: Output impedance: |
0/4…20mA, galvanically isolated
500Ω >1M typical |
|
| Power supply: | 20 to 253VAC or DC | |
| Power supply load: | 20 to 253VAC or DC | |
| Power supply load: | 4.5 to 7.0W at 230VAC | |
| CE-conformity: | fulfilled | |
| Terminals: | 3 x 6-pole plug-in screw terminals | |
| Terminal description: | 1= supply voltage: AC~/DC(+)
3 = supply voltage: PE 5 = signal output (+) 7 = alarm contact 1, c.o. contact 9 = alarm contact 1, n.o. contact 11 = alarm contact 2, n.c. contact 13 = signal input PE 15 = signal input current (+) 17 = 2-Wire transmitter supply +24V
|
2 = supply voltage: AC~/DC(-)
4 = signal output PE 6 = signal output (-) 8 = alarm contact 1, n.c. contact 10 = alarm contact 1, c.o. contact 12 = alarm contact 2, n.o. contact 14 = signal input (-) 16 = signal input voltage (+) 18 = 2-Wire transmitter supply PE
|
| Mounting | 35mm mounting rail, EN50022-35 | |
| Weight: | 200g | |
| Warranty: | 2 years | |
| Options: | – USB programming unit for MOSTEC devices with cable and software – Other input signal | |
