JEROME® 451
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USER MANUAL JEROME® 451 MERCURY FIXED POINT MONITOR OPERATION MANUAL November 2008 Refer to the “431-X Operation Manual” (AZI # 700-0046) for specifics on the 431-X ARIZONA INSTRUMENT LLC 3375 N Delaware Street | Chandler, AZ 85225 USA 800.528.7411 | 602.470.1414 | f 602.281.1745 www.azic.com Email: General – azi@azic.com International – intl@azic.com Customer Service – support@azic.com

JEROME® 451 MERCURY FIXED POINT MONITOR Operation Manual PROPRIETARY RIGHTS NOTICE This manual contains valuable information and material developed by Arizona Instrument LLC for use with the Jerome® 451 Mercury Fixed Point Monitoring System. No part of this manual may be reproduced or transmitted in any form or by any means, electronic, mechanical or otherwise. This includes photocopying and recording or in connection with any information storage or retrieval system without the express written permission of Arizona Instrument LLC. ALL RIGHTS RESERVED Copyright 2005-2008 Arizona Instrument LLC

The Jerome 451 is a non-portable mercury gas monitor designed for perimeter and other outdoor locations. The 451 utilizes a removable 431-X to monitor gas concentrations. The 451 is protected in an insulated all-weather (except flooding) enclosure; it is AC powered and has built-in heat and air conditioning for increased 431-X accuracy. The 451 can be remotely polled for up-to-date readings or left unattended to log readings for up to a year. A PC that is equipped with “Jerome Monitor Software” (JMS) and a radio modem serves as a Base Station and downloads readings from one or multiple...

WARNINGS (READ THIS BEFORE USING THE 451) THE 451 IS NOT DESIGNED TO OPERATE IN HAZARDOUS LOCATIONS. THE 451 IS NOT DESIGNED FOR HEALTH AND SAFETY MONITORING Read the “431-X Operation Manual” (AZI # 700-0046) for specifics on the 431-X. Sample intervals under 30 minutes will result in a 431-X sensor life of less than 1 year. Follow local and national codes when installing the 451. It is recommended to use a ground fault circuit interrupter (GFCI) on the AC power circuit for safety in an outdoor environment. Do not allow rain to get inside the 651 enclosure. 431-X In the 451, the 431-X used...

The heart of the 451 is a Jerome 431-X instrument; refer to the “431-X Operation Manual” (AZI # 700-0046) for specifics on the 431-X. The accuracy and repeatability specifications of the 451 are relaxed to take into account the continuous use of the 431-X sensor. 451 Specifications Detectable range 8% relative standard deviation at 0.100 mg/m3 Estimated sensor life 6 months at 30-minute sample interval and 48hour regeneration interval. 3 months at 15minute sample interval and 24-hour regeneration interval. The interval could be extended in ideal operating conditions. Flow rate User...

67 cm wide x 64 cm tall x 23 cm deep 26” W x 26” H x 9” D 1 year, factory parts and labor except for 431-X sensor. See WARRANTY section for sensor warranty details. Spectra Radio-Modem Specifications Frequency Serial Interface Power Requirement Operating Temperature Up to 6.4km (4 mile) “line of sight” Longer distances may be obtainable through use of a high gain antenna or by using the Radio Repeater.

STANDARD EQUIPMENT 451 (AZI # X451) with door key 451 Accessory Kit (AZI # Y990-0192) 451 Fixed Point Mercury Monitor Operation Manual (AZI # 700-0096) Base Station Radio Modem Kit (AZI #Y990-0199) Jerome Monitor Software (JMS) (AZI # 710-0040) 431-X Mercury Analyzer Operation Manual (AZI # 700-0046) OPTIONAL EQUIPMENT Ammonia Filter Kit (AZI # Y990-0202) Chlorine Filter Kit (AZI # Y990-0200) Wind Gauge (Anemometer) (AZI # 980-0010) 451 Wind Gauge Cable (AZI # 200-0137) Flow Pump Kit (AZI # Y990-0195) Radio Repeater Kit (AZI # Y990-0203) Vacushield filter (AZI # 800-0065) 451 Enclosure...

Antenna Mounting Brackets AZI #300-0489 - Antenna Mounting Bracket, Pole Mount AZI #300-0490 - Antenna Mounting Bracket, Right Angle Mount To Wall AZI #300-0491 - Antenna Mounting Bracket, Straight Mount To Horizontal Surface Call AZI Customer Service for a part that is not listed. Antenex is also a good source for parts.

Mounting Because of the weight of the 451, two people may be required for installation. Wall Mounting: Obtain the appropriate anchors from a hardware store for the installation wall type. Drill one of the upper mounting holes into the wall. Hold the 451 to the wall and mark the second upper hole. Drill the second mounting hole into the wall. Temporarily mount the 451 to the wall and mark the lower two holes. Remove the 451 and drill the lower two mounting holes into the wall. Permanently mount the 451 using all four mounting holes. Power Connection POWER CONNECTION NOTES: When a generator...

POWER CONNECTION PROCEDURE: 1. Ensure the facility circuit breaker for the power line is open. 2. Connect the two power lines and the safety ground as shown. 3. Close the circuit breaker and the 451 is powered. At power UP, the display flashes in order:  AZI,  451 Hg,  VX.XX, where X.XX is the version number of the 451‟s operating program, and  X.XXXmg/m3, where X.XXX is the detected concentration of the monitored gas. Wind Gauge The optional Wind Gauge can be utilized to track wind speed and direction at sites where a weather station or similar system is not available. INSTALLATION:...

Outdoor/External Antenna Setup If you have purchased the optional outdoor/external antenna for the 451, the standard Phantom antenna mounted in the top of the 451 is unscrewed and replaced with a lightning arrestor installed inside of the 451 enclosure. 1. Connect an appropriate cable from the lightning arrestor to the outdoor antenna. Refer to OPTIONAL EQUIPMENT on page 9 for information on the different cables available. See the diagram below for an example setup.

2. The lightning arrestor must be grounded to provide protection. Attach the grounding strap to the connector of the cable from the lightning arrestor to the antenna. This is just above the lightning arrestor, on the outside of the 451 enclosure, as shown below. Use the Grounding Strap to ground the system to a metal water pipe running into the ground, grounding spike, or other appropriate means using #6 gauge bare copper wire. (Follow national/local codes). For additional protection, install a lightning rod as well. Connector of Cable from Lightning Arrestor to Antenna Grounding Strap...