Remote Controller Options; Parts List; Specifications - Emerson MRLDS-250 Installation And Operation Manual

Optional
Recalibra-
tion
(For
Improved
Accuracy)
By applying calibration gas containing the
new target refrigerant, and via the routine
described in Section 6.4., Adjustment Using
Calibration Gas, the gas detector may then be
adjusted to respond with the calibrated
accuracy as shown in Table 1-2 for the new
target refrigerant.
Table 1-3 Changing Gas Types and Accuracy
1.3. Remote Controller
Options
The MRLDS can connect to any controller
through the standard analog output (voltage and
current; see Table 1-5 for options) such as the
standard alarm relay.

1.4. Parts List

Table 1-4 shows a list of components that are
available.
Part Number
809-0030 MRLDS, Broadband
809-0031 MRLDS, Calibrated to R22
809-0034 MRLDS, Calibrated to R404A
809-0035 MRLDS, Calibrated to R407A
809-0040 MRLDS, Calibrated to R422D
809-0041 MRLDS, Calibrated to R448A
809-0042 MRLDS, Calibrated to R449A
809-0043 MRLDS, Calibrated to R513A
603-1100 Splash Guard
026-1315 Installation and Operation Manual
Table 1-4 Parts List

Remote Controller Options

Description

1.5. Specifications

For default values, refer to Section 5.2., Setting
Parameters.
Specification
Power Supply 24 VDC, 24 VAC 50/60 Hz,
2.5 W max
Power Monitoring Green LED
Visual Alarm Red 4-digit LED display
Audible Alarm Buzzer (audible alarm), enable/disable
(Default enabled)
Fault Monitoring Fault codes presented to user
Analog Outputs 4-20 mA; 0-5V; 0-10V; 1-5V; 2-10V
(Default 1-5V)
Relay 1 relay rated 1 A @ 24 VAC//VDC
(0.5A, 125V AC UL rating)
Range 0-3500 PPM
1 Readings below 75 PPM are squelched
Squelch
by default
Alarm Delay Selectable: 0 to 15 minutes
(Default, 0)
IP Rating Not IP rated. An accessory splash
guard is available for areas requiring
additional protection from wash down.
Response Time, Five (5) minutes
T90
Temperature -22°F to 10°F (-30°C to 40°C)
Rating
Humidity and 5-90% relative humidity, non-
Elevation condensing, 0-10,000ft. altitude
Standard 4.0" x 5.5" x 1.5"
Dimensions and 102 x 140 x 37mm 180g
Weights
Approvals CE, MET/IEC/EN 61010-1
Table 1-5 Specifications
1
When filtering is disabled (see parameter P.-19 in Section
5.2.2., Configuration Parameters), the unit will respond to con-
centrations sub-10 PPM.
Description
6.3oz.
Introduction • 3