User Guide
Table Of Contents
- Section 1. Introduction
- 1.1. How to Use This Manual
- 1.2. Warning Statements
- 1.3. Caution Statements
- 1.4. Hazard Symbols Located on the Monitor
- 1.5. Safety Precautions
- 1.5.1. AC Power Supply
- 1.5.2. Protective Grounding
- 1.5.3. Explosive Atmosphere
- 1.5.4. Proper Exhaust Venting
- 1.5.5. Accessing the Interior of the Monitor
- 1.5.6. Misuse and Modifications to the Monitor
- 1.5.7. In Case of Malfunction
- 1.5.8. Fusing
- 1.5.9. Installation Category
- 1.5.10. Altitude Limit
- 1.5.11. Cleaning
- 1.6. Functional Overview
- 1.7. Specifications
- Section 2. Installation
- Section 3. Operation
- Section 4. Maintenance
- 4.1. Warnings and Cautions
- 4.2. Charcoal Filter (Halogen Gas Monitor Only)
- 4.3. Hydrophobic Filters
- 4.4. Servicing Air Lines and Termination Filters
- 4.5. End-of-Line Water Stop (Optional)
- 4.6. Water Trap (Optional)
- 4.7. Fuses
- 4.8. Clock Battery
- 4.9. Sample Pump
- 4.10. Replacement Parts and Optional Accessories
- 4.11. Service Centers
- Appendix A. Data Tables
Single Zone Gas Monitor
P/N: 3015-4256 Rev 10 12
2.6. Electrical Wiring
The SZ unit uses a universal power supply that is capable of accepting inputs of 100 to 240 VAC,
50/60 Hz. The monitor’s power consumption is 15 Watts (maximum). It is highly recommended that the
monitor be connected directly to the AC power source, preferably on its own circuit. The connection
should be completed with UL listed multi-conductor wire (minimum 16 AWG), rated 300 VAC at 105°C.
Locate a convenient service knockout and install electrical conduit in the typical manner.
Locate the AC Input Terminals and Ground Stud on the inside of the monitor (page 10).
Secure the incoming AC power neutral (white) and live (black) wires to the LINE 1 and LINE 2 terminals.
Using the supplied crimp-on ring terminals, washers, and nuts, connect the incoming AC power ground
wire (green) to the monitor’s AC Input Ground Stud, and then install a separate wire between the ground
stud and the GND terminal.
Using the supplied crimp-on
ring terminals, washers, and
nuts, connect the incoming
AC power ground wire
(green) to the monitor’s AC
Input Ground Stud, and
then install a separate wire
between the ground stud
and the GND terminal.
A switch or circuit breaker
rated 1.0 A, 250 VAC, with
a minimum terminal spacing
of 3.0 mm must be attached
to the monitor’s AC power
leads. This switch must also
be located in close
proximity to the monitor,
and be in easy reach of the
operator. This switch should
also be clearly marked as
the monitor’s main AC
disconnect device.
Figure 2-6. AC Power Connections
WARNING: Electrical installation should be performed by a certified electrician, and should
comply with all applicable NEC/CEC and local electrical safety codes.
WARNING: The AC power ground wire must first be connected to the monitor’s ground
stud. Under no circumstances should this monitor be operated without a protective ground.
Doing so poses a potential shock hazard, and is also a violation of electrical safety
standards applicable to this type of equipment.
WARNING: Copper conductors for connection to supply mains must be made in
accordance with NEC/CEC and local codes