Sierra Monitor Corporation 2050 User manual

Model 2050/2060
Ammonia and Halocarbon Gas Monitors
Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 [phone] [phone] FAX: [phone]
Cost effective gas alarm monitors for
ammonia and halocarbon gases. Avail-
able as single channel monitors or part of
multipoint alarm system
The Model 2050 Ammonia and Model 2060 Refrigerant/
Halocarbon Gas Monitors are continuous duty, low cost
stationarymonitorsfordetectionofhighlevels(50-500PPM)
ofammoniaandhalocarbonrefrigerantgases. Thesemoni-
tors are primarily used in and around freezers, refrigera-
tors,and compressorrooms towarn ofleaks anddanger-
ous levels of these gases.
An alarm is activated when the concentration of gas ex-
ceeds the user-adjustable level. An alarm condition acti-
vatesthe alarmlight onthefrontofthe monitorandgener-
ates an output signal. An output signal can activate a
remote alarm through the Model 2102Alarm Panel. The
Model 2102 Dual Channel can be connected up to 500
feet from the monitors. Each monitor also hasa 0.5 amp,
dry contact relay replaces the output signal.
The monitors are housed in a polystyrene enclosure that
is suitable for installation in freezer, refrigerator or other
applications. Test connections and adjustment controls
arelocatedontheoutsideofthe enclosureand areeasily
used,even whenthe operatoris wearinghandprotection.
Alarms
Thesemonitors havetwoindicator lightsonthe frontofthe
unit, a green “safe” indicator and a red “alarm” indicator.
Three alarm conditions are possible. These can be de-
tectedvisuallyatboththemonitorandcontrolleratalltimes.
Warm-up- Interrupted(On/Off) “red/green”visualin-
dicationwhenpowerisfirstconnectedtothemonitor,
followedby ared lightuntilwarm-upiscompleted and
the green light comes on.
Gas Alarm - Sustained solid red light indicating the
presenceofgasat,or above,the pre-setthreshold.
Sensor failure -Interrupted(on/off) “red/green”visual
indication after unit has been in operation, indicating
either a failed sensor or that the monitor is not cor-
rectlycalibrated.
The Model 2050 Ammonia monitor has a factory alarm
setpointof100ppmNH3. This setpointis useradjustable
inthe fieldover arange of50 to500 ppmNH3. TheModel
2050calibrationcan bechecked withHydrogen gas.
TheModel2060Halocarbonmonitorcanbecalibratedwith
Carbon Monoxide and the factory setpoint varies for the
specific type of halocarbon present. The factory setpoint
forR12 is500ppm whilethesetpointforR134ais50ppm.
See the specifications for more details.
Temperature Range
TheModel2050and2060 havetemperaturecompensated
circuitry to provide stabilization in temperatures ranging
from-4oto158oF.
Semiconductor-Type Sensor
A solid-state semiconductor-type sensor and associated
electronic circuitry ensure trouble-free, long-term opera-
tion. There are no pumps, filters, or chemical cells to
replace or maintain. Except periodic calibration to verify
thealarmsetting,noperiodic maintenanceis requiredaf-
ter installation. The user may adjust the alarm level by
usinga differentcalibration gasconcentration.

Model 2050/2060
Ammonia and Halocarbon Gas Monitors
SPECIFICATIONS
Indicators: GreenLEDforMonitor“ON”/Safe
RedLED forAlarm
SensorType: Solid-state metal oxide semiconductor
AlarmSetpoint::
2050Series 100ppmNH3
2060Series R11 500ppm
R12 500ppm
R22 50ppm
R113 100 ppm
R123 70 ppm
R134a 50 ppm
R141b 40 ppm
R142b 40 ppm
R500 40 ppm
R502 70 ppm
User adjustable with calibration over
rangeof 50 to500ppm
CalibrationGas:
2050 Series 80 ppm Hydrogen(H2)
2060 Series 150ppmCarbonMonoxide(CO)
Power: 9-24VDC, 250 mA
SignalOutput::
2050-00/2060-00 Nominal5voltDC,source25mA. SAFE
andALARMSignals
0.5AMPdrycontact,100VDC,130VAC
andaudible
ResponseTime: Less than 90 seconds
OperatingTemperatureRange:
-4oto 158oF (-20oto 70oC)
EnclosureMaterial: Polystyrene
Size: 5.6 x 3.1 x 2.1 in. (14.2 x 7.9 x 5.3 cm)
Weight: 0.3lb (0.15 Kg)
Sierra Monitor Corporation 1991 Tarob Court Milpitas, CA 95035 [phone] [phone] FAX: [phone]
Visit our website: www.sierramonitor.com E-mail: [e-mail]
Outline and Dimensions
of Model 2050/2060
ORDERINGINFORMATION
2050-00 AmmoniaGasMonitor
2060-00 Refrigerant/Halocarbon GasMonitor
1200-26 Gas Sensor Calibrator w/2 gas cylinders
of calibration gas
1290-10 Gas Cylinder - Carbon Monoxide, 150 ppm
1290-11 Gas Cylinder- Hydrogen,80 ppm
OTHERPRODUCTS
2102-00 Dual ChannelAlarm Panel
© 2010SierraMonitorCorp.Rev.A-7/10