Bulletin P-3100 Series 3100 Explosion-Proof Differential Pressure Transmitter Specifications - Installation and Operating Instructions DWYER INSTRUMENTS, INC. P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Phone: 219/879-8000 Fax: 219/872-9057 www.dwyer-inst.com e-mail: info@dwyermail.
Table of Contents Chapter 1. Introduction 1.1 Using This Manual 1.2 Overview of Transmitter 1.3 Software Compatibility Chapter 2. Handling Cautions 2.1 Unpacking Transmitters and Specifications Check 2.2 Models and Specifications Check 2.3 Storage 2.4 Selecting Installation Locations 2.5 Calibration after Installation 2.6 Pressure Connections 2.7 Waterproofing Cable Conduit Connections 2.8 Restrictions on Use of Radio Transceiver 2.9 Installation Resistance Test and Dielectric Strength Test 2.
Chapter 1 Introduction The 3100 Smart Pressure Transmitter is calibrated at the factory before shipping. To ensure correct and efficient use of the instrument, please read the manual thoroughly and fully understand how to operate the instrument before operation. 1. The contents of this manual are subject to change without prior notice. 2. All rights are reserved. No part of this manual may be reproduced in any form without Dwyer Instruments, Inc. written permission. 3.
1.2 Overview of Transmitter The Mercoid® Smart Pressure Transmitter is a microprocessor based pressure transmitter with a capacitance sensor optimized for draft measurement. The Model 3100 has a true draft analog range from 0 to 20 mA. This transmitter is explosion-proof, high precision accuracy, reliability and has digital communication for remote communication system. The Model 3100 is enabled with HART® communication with Host, HHT (HART® Communicator) or PC Configurator.
Chapter 2 Handling Cautions This chapter consists of cautions for transmitter handling, storage, installation, insulation and explosion structure, etc.
2.1 Unpacking Transmitters When moving the transmitter to the installation site, keep it in the original packaging. Unpack the transmitter at the installation site to avoid damage on the way. 2.5 Calibration after Installation 1. Sensor Zero Trim should be done after transmitter is installed, because the zero point is not configured for mounting status. 2.
4. After completing the test and being very careful not to touch exposed conductors. Disconnect the insulation tester and connect a 100kW resistor between the grounding terminal and the shortcircuiting SUPPLY terminals. Leave this resistor connected at least three seconds to discharge any static potential. Do not touch the terminal while it is discharging. B. External Ground Assembly: This is located in the right side of housing and identified as ground sign. (Grounding with a cable lug) 2.
3-5 EEProm-Write Enable / Disable Mode Switch EEPROM (Electrically Erasable Programmable ROM), included on the CPU module, is used by the transmitter to save/restore configuration variables. To protect the transmitter from any unauthorized changes, a hardware lockout feature can be implemented by using the Write-Protect mode jumper switch provided on the main CPU Module. If the jumper switch is connected to DIS, this disables writing/changing of any data saved in the EEPROM.
3.7 Configuration of Zero and Span Procedures The ZERO and SPAN Buttons are under the transmitter’s nameplate. The ZERO, SPAN, ZERO TRIM, ZERO ADJ, Units, Range, Dampening, LCD and decimal set functions are configurable using the ZERO / SPAN buttons. CAUTION 30 seconds without any action, the button function will return to normal operation. 4. How to select a numerical value A.
• CHANGE UPPER RANGE VALUE 1. Access the menu by pressing the Zero+Span buttons. 2. Move to the next menu by pressing the Zero button until the 1 TRIM message appears. 3. Press the Span button until the 2 SETUP message appears. 4. Press the Span button until the 21 Unit message appears. 5. Press the Zero button until the 22 U-RNG message appears. 6. Press the Span button until the Zero Adjustment message appears. • CHANGE LOWER RANGE VALUE 1. Access the menu by pressing the Zero+Span buttons. 2.
Chapter 4 Installation 4.1 Overview The information in Chapter 4 explains installation. Start 4.2 Safety Messages Procedures and instructions in this chapter may require special safety measures to ensure the safety of the personnel performing the operation. Potential installation safety issues are indicated by a safety alert symbol ( ). Refer to the following safety messages before installing the 3100 pressure transmitter. Basic Setup 4.
4.6.1 Power Supply The 3100 Pressure Transmitter requires an 11.9 – 45 VDC power supply. A 250 ~ 550Ω (24 VDC) loop resistance is recommended for HART® communication. Loop resistance is the sum of the resistance in the loop. Max. Loop Resistance [Ω] = (E-11.9) [vdc] / 0.022 [mA] 4.7 Wiring 4.7.1 Wiring Caution 1. Install the signal cables away from potential sources of electrical noise such as transformers, electrical motors, etc. 2. Before wiring, remove electrical conduit cap. 3.
B.Wiring Installation General-use (Figure 4-4a) 1. Use metallic conduit or waterproof cable glands for wiring. a. Apply non-hardening sealant to the terminal box and the threads on the flexible metal conduit for waterproofing. 4.7.5 Grounding a. Grounding should satisfy KS requirements (grounding resistance should be 10 ohm or less). Grounding is required for explosion-proof applications and the ground resistance must be below 10 ohms.
4.8 Mechanical Considerations Figure 4-6 is a dimensional drawing for the 3100. Figure 4-7 shows how the A-630 angle bracket is mounted to a pipe. 4.9 Environmental Considerations 4.9.1 Ambient Temperature The transmitter ambient temperature range is 4 to 180°F (-20 to 60°C). If the ambient temperature is going to exceed the temperature range, precautions must be taken to keep the temperature within the temperature limits. 4.9.
5.6 Detailed Setup 5.4.1 Process Variable There are two process variables in the 3100 Smart Pressure Transmitter. The primary variable and temperature compensated SV (Second Variable), the PV value outputs the 4~20mA analog value. 5.6.1 Set Fail Mode When the sensor or microprocessor is not operating properly, the transmitter will output 3.75mA or 21.75mA based on the Fail Mode setting. 5.5 Basic Setup The correlation variable must be configured before operating the transmitter. 5.6.
5.9 Calibration The scale is implemented by calibrating the transmitter. Trim function has several calibration functions. Smart transmitters operate differently than analog transmitter. A smart transmitter uses a microprocessor that contains information about the sensor's specific characteristics in response to pressure and temperature for calculating the process variable.
6.3 Hardware Diagnostics If there is a failure despite a diagnostic message on the HHT, Table 6.1 can help troubleshoot the problem. Symptom Transmitter does not Communicate with HART® Communicator High Output Erratic Output Low Output or No Output Corrective Action • Check for a 250-550 ohms resistance between the power supply and HHT. • Check for adequate voltage to the transmitter (the transmitter requires 11.9 ~ 45 Vdc). • Check for intermittent shorts, open circuits, and multiple grounds.
Figure 6-1 Test Terminals 6.4.2 Disassembling the Housing The transmitter is designed with dual-compartment housing; one contains the electronics module, and the other contains all wiring terminals and communication terminal. Figure 6-2 Structure of Housing 6.4.3 Fail Mode Jumper Switch and EEPROM-Write Fail-mode jumper switch and EEPROM-Write is located behind the front cover.
Appendix I 3100 SMART PRESSURE TRANSMITTER - LCD DISPLAY CODE Message ADJ-U ADJ-L ZERO SPAN BT-ERR P-LOCK ZT-ERR -TRZR-ERR SP-ERR -ZR-SP-ZA-DONERNGOVR LCD_OV SCD-ER F-RST F-LOCK F-FAIL -FRA-RST A-STOR A-FAIL -ACS-FL S-OP AEP-RF TS-FL AEP-WF EOSC FAVE Description Zero adjustment value – used to configure transmitter when it is out of range (on higher side) Zero adjustment value – used to configure transmitter when it is out of range (on low side) Initial message when using Zero button Initial message when u
©Copyright 2014 Dwyer Instruments, Inc. Printed in U.S.A. 5/14 DWYER INSTRUMENTS, INC. P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Phone: 219/879-8000 Fax: 219/872-9057 FR# R6-443807-00 Rev. 6 www.dwyer-inst.com e-mail: info@dwyermail.
