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 9
Figure 2-3. Termination Filter (P/N 3015-3420)
2.3.5. Connecting the Purge Line
The purge is an intake line that draws fresh air into the instrument. It should not exceed 100 feet in
length. It is advisable to terminate the purge line outdoors, provided the input is not exposed to rain,
snow, ice, exhaust fumes, or other airborne contaminates. If an outdoor installation is impractical, the line
should be run to an area inside the facility that you are certain is not contaminated with ambient gas. If
this is not possible, an optional charcoal filter assembly (P/N 3015-3125) can be used with the monitor to
filter refrigerant from the purge line. It may be mounted adjacent to the monitor. A line-end filter (P/N
3015-3420) should be attached to the end of the purge line when the charcoal filter is not used.
2.3.6. Installing Optional Splitter Kit
Splitter Kits are made available which allow the SZ unit to take gas sample readings from several sample
points. These kits are designed for use ONLY in confined/defined spaces with high potential for leaks,
such as food cases, cold rooms, refrigeration rack rooms, etc. Bacharach’s SZ 2-way (P/N 3015-5404)
and 3-way (P/N 3015-5405) splitter kits are available as an optional accessory. Refer to instruction 3015-
5415 (supplied with kit) for detailed installation instruction.
2.3.7. Connecting the Water Trap
The water trap (P/N 0007-1655) is an optional accessory for applications that result in water or
condensation frequently entering the intake lines. Install the trap close to the unit for the most effective
results. The intake line may be cut where the user finds appropriate (preferably close to monitor). Each
side of the intake line should be inserted into the receivers on either side of the water trap. Secure tightly.
A replacement filter (P/N 0007-1656) for the water trap is available and is replaced by unscrewing the
clear plastic cup of the water trap, pulling the filter directly out (do not unscrew), and inserting the new
filter into place. Replace the cup of the water trap. If desired, an optional mounting bracket (0007-1657)
may be used to secure the water trap in place.
NOTE: The termination filter (P/N 3015-3420) or end-of-line water stop filter (P/N 3015-
5512) should be used, regardless of the presence of a water trap.
WARNING: Extreme temperatures and/or humid conditions may cause water to condense
in the tubes. A water trap is highly recommended for use in these scenarios.