Hydro Instruments Technology Pte Ltd

60 Paya Lebar Road #09-25
Paya Lebar Square, Singapore 409051
Tel: +65 822-31377
Fax: +65 6385-5283
Email: sales@hydroinstrument-sg.com
Web: www.hydroinstrument-sg.com
1. Residual Chlorine Analyzers
RAH-210-IS
Gravity Reagent Feeder

Amperometric Online Residual Analyzer.
For Free Chlorine, Total Chlorine, Chlorine Dioxide, Bromine or Iodine measurement.
Available with pH & temperature compensation without buffer chemicals for Free Chlorine.
Provides continuous measurement and rapid response.
Provides continuous temperature monitoring and compensation.
Four 4-20 mA outputs (selectable between residual, pH/ORP, Temperature, Turbidity, and control signals)
Four alarm relay.
Includes complete PID Control Program (standard)!
Password Protected Settings.
Includes complete P&ID Control Program
MODBUS (RS485) communication
Optional "Data Logger" - record information and retrieve it using any Office programs on computer.
Also available with "Reagent Feed Pump Kit" - supplied with Peristaltic Pump for feeding reagent to the analyzer.
Catalogue
RAH-210-IS
pH Electrode

RAH-210-IS
Dual Gravity Reagent Feeder

RPH-250-IS
Amperometric Probe-Style Chlorine Residual Analyzer
For Free -or- Total Chlorine measurement (Also usable for Chlorine Dioxide)
Transparent Inlet & Probe Flow Cells
Allows Simple Calibration & Maintenance
Available Range (Free Cl2): 0-2, 0-5, 0-10, 0-20, 0-100, 0-200 PPM
Available Range (Total Cl2): 0-2, 0-5, 0-10, 0-20 PPM
Automatic pH Compensation Software Included (Standard)
Optional pH Probe
PRV with 0-15 PSI Pressure Gauge, Sample Control Valve & Flow Meter Provided (Standard)
Cross-Sensitive for: Chlorine Dioxide, Ozone, Iodine, Bromine, Bromamine, Di & Trichloramine
Optional Data Logger
Includes complete PID Control Program!
Provides two 4-20 mA outputs and one alarm relay
Catalogue
Data Logger
The RAH-DL1S data logger is an electronic device that automatically collects and records data over a period of time from the Hydro Instruments Residual Chlorine Analyzers.

The data logger utilizes an internal flash memory card for data storage and is programmable as to how often data from the attached residual analyzer is captured and stored. This allows for a comprehensive look of the sample water conditions being monitored over time similar to that of a circular chart recorder.
Catalogue
Sample Water Recovery System
Eliminates wasted water from analytical devices.
Accomodates up to 20 gal / hour of sample water flow.
Provides safety / overflow connection and tubing.
Provides atmospheric pressure manifold to prevent suction being drawn on analysis instrument / device.
Catalogue
PRV and Pressure Gauge Assembly
for Residual Chlorine Analyzers
2. Turbidity Meter
TH-4000-IS Turbidity Meter
High Range Turbidity Meter
Simple to operate
Convenient to maintain
Designed to handle harsh environments
Ideal for a variety of applications
Low and high range readings (0-50 NTU & 0-1000 NTU)
Adjustable alarms
Optional integral data logger
RS484 MODBUS communication
3. Gas Alarm Leak Detectors
GA-180-IS
Up to 16 sensors
Up to 35 relays - user adjustable, latching & non-latching, failsafe & non-failsafe
Two common alarm relays
Integral 90 dB horn
Isolated 4-20mA outputs
MODBUS communication
Optional battery backup
Optional temperature monitoring
Modular circuitry
Password protected setup

*) Available with additional enclosure for Outdoors use! complete set up with external alarm light & horn

**) Available with Side Mounted Sensor Enclosure
Catalogue
GA-170-IS
Up to four sensors per control module.
Electrochemical sensor.
Includes six alarm relays.
Backlit LCD Display-2 line, 16 characters per line.
Simple keypad operation.
User friendly calibration and operation.
Available for Cl2, SO2, NH3, H2S, O3, ClO2, H2, O2, NO, NO2, HCl, CO
Latching/Non-Latching & Failsafe/Non-Failsafe outputs.
Danger/Warning LED's & 90 dB audible alarm built-in.
12 hour battery backup option.
4-20 mA output available.
RS-232 output option.
Password Protected Settings.

*) Available with additional enclosure for Outdoors use! complete set up with external alarm light & horn

**) Available with Side Mounted Sensor Enclosure
Catalogue
GA-171-IS
Up to two sensors per control module.
Electrochemical sensor.
Backlit LCD display-2 line, 20 characters per line.
Simple keypad operation.
User friendly calibration and operation.
Available for Cl2, SO2, NH3, H2S, O3, ClO2, H2, O2, NO, NO2, HCl, CO
One common relay for all alarm conditions.
Latching/non-latching relay option.
Danger/Warning LED's built-in.
4-20 mA output standard.
RS-232 output.
Password Protected Settings.

*) Available with additional enclosure for Outdoors use! complete set up with external alarm light & horn

**) Available with Side Mounted Sensor Enclosure
Catalogue
External Alarm Light & Horn
An external alarm light with combination audible horn is an electronic device designed to alert operators and other personnel both visually and audibly to a specific danger.
Catalogue
4. Automatic Control Valves
OV-1000 Omni-Valve
The new and improved Omni-Valve for automatic feed rate control.

Automatic feed control of Chlorine (Cl2), Sulfur Dioxide (SO2) & Ammonia gas (NH3) - Liquid feed control of Sodium Hypochlorite (NaOCl) and *others.
Elongated linear drive design for increased accuracy - Eliminates rotary motion for minimal wear
Maximum Capacity: 10,000 PPD (200 kg/h) Cl2
2 line x 20 character display.
Control Modes: Manual, Remote, Flow Pacing, Proportional, Residual, ORP, Compound Loop (PID), Step-Feed, Dual Input Feed Forward and Dual Set-Point
Modbus Communication (RS-485)
Two relay contact alarm outputs
Two standard 4-20 mA outputs
Ten point linearization process for accurate and repeatable control
Available as a special order item for pressure feed applications (20 PSI maximum).

*Consult factory for options.
Catalogue

Wall Panel Catalogue
Omni Valve-110
Next Generation Automatic Valve for Feed Rate Control

Automatic feed of Chlorine gas, Sulfur Dioxide gas, Ammonia gas, Sodium Hypochlorite & other liquid chemicals.
Linear drive design eliminates rotary motion - means minimal wear.
Max Capacity: 6000 PPD (120 kg/h) Gas or 10 GPM Liquid Chemical Feed.
2 line x 20 character display.
Control Modes: Manual, Remote, Flow Pacing, Proportional, Residual, ORP,Compound Loop (PID), Step-Feed and Dual Input Feed Forward.
*Modbus Communication (RS-485)
Two relay contact alarm outputs
Two (2) standard 4-20 mA outputs.
Ten point linearization process for accurate control.
Includes delays, filters and threshold adjustment.
Available as a special order item for pressure feed applications (20 PSIG or less).
Password Protected Settings.

*MODBUS is only available in units with the new hardware that started shipping after April 2013.
Catalogue

Wall Panel Catalogue
Control Valve-230
A Simple Valve for Automatic Proportional Feed Control

Compact design and simple proportional programming.
Automatic feed of Chlorine gas, Sulfur Dioxide gas, Ammonia gas, Sodium Hypochlorite & other liquid chemicals (vacuum systems).
Excellent accuracy and repeatability.
Control Modes: Manual and Automatic (Proportional / Flow Pacing).
Capacities up to 6000 PPD (120 kg/h) gas or 10 GPM liquid feed.
Linear drive design eliminates rotary motion -ensures minimal wear.
Ten point linearization process for accurate feed control.
2 line x 20 character display.
Contact alarm relay and (2) 4-20 mA outputs standard.
NEMA 4X Enclosure.
Available as a special order item for pressure feed applications (20 PSIG or less).
Password Protected Settings.
Catalogue

Wall Panel Catalogue
5. Evaporator (Vaporizer) System
VPH-10000-IS Floor Mounted
10,000 PPD (200 Kg/h) Cl2,
8,000 PPD (150 Kg/h) SO2 or
2,500 PPD (50 Kg/h) NH3
ASME section VIII certified pressure chamber
Stainless steel water tank w/ 1.5" drain valve
Automatic water level control
Cathodic corosion protection system
18 kW heater w/ SCR controller for maximum life and minimal energy consumption
Electronic controller monitors vaporizor operation and superheat temperature
Usable with multiple Pressure Reducing Valve for Duty/Standby operation
MODBUS (RS485) communication
4-20mA outputs
Alarm relays

Vaporizer (Evaporator) Accessories are also available in the accessories web page.
Catalogue
6. Automatic Changeover (Electronic Type)
CS-110 Changeover System
Allows for continuous chemical feed on a duty / standby system.
Provides electronic indication of system status for remote monitoring.
Can be used with Chlorine, Sulfur Dioxide and Ammonia Gases.

* Analog Type is available!
Please see our "Accessories" page
Catalogue
7. PID Controller
HC-220-IS
Compatible with any brand of Chemical Dosing Pumps (Metering Pumps)!
Performs Set Point and PID control (Compound Loop).
Accepts two 4-20mA inputs: proportional and set point process variable signals plus remote dosage / manual control input.
Provides two 4-20mA output signals for control and monitoring.
Alpha-Numeric 2 line x 20 character display.
Catalogue
Omni Controller-190
Compatible with any brand of Chemical Metering Pumps!
Performs Step-Feed Control (up to four steps).
Also performs Set Point & PID control (Compound Loop).
Accepts two 4-20mA inputs : one proportional and one set point.
Provides 4-20mA output signals for control.
Alpha-Numeric 2 line x 20 character display.
Catalogue
 
about us  |  why choose hydro  |  gas feed system  |  liquid feed system  |  electronics  |  generator  |  accessories  |  news & event
(c) Hydro Instrument (S) Pte Ltd