Instruction Manual

E. SENSORS
All sensors feature integral thermistor style temperature sensors
to ensure accurate, rapid and reliable automatic temperature
compensation.
1. CONDUCTIVITY/TDS
AQUASWITCH II Conductivity/TDS Monitor/controllers use the
CS51LC or CS51 Series sensor depending on range. The 1.0 cell
constant CS51 model is recommended for ranges of 0-10 through
100 µS/ppm. Its compact size allows mounting in a standard 3/4"
tee. The sturdy polypropylene bushing is modular for easy,
inexpensive replacement. Other models available by special
order.
CS51LC sensor has a cell constant of 0.1 and is used for
conductivity/TDS values of 0-1 to 0-5 µS/ppm.
2. RESISTIVITY
AQUASWITCH II Resistivity Monitor/controllers use the CS10
sensor. It has a cell constant of 0.05 and is used for ultra pure
water applications. Other models available by special order.
Special order High Temperature, High Pressure sensors; and Low
Cost, Low Temperature, Low Pressure sensors are available.
For detailed descriptions of these and other sensors, see Sensor
Selection Guide and specific sensor data sheets available from
your local distributor, the Myron L Company, or on line at
www.myronl.com.
3. SENSOR SPECIFICATIONS
STANDARD MODELS — 316 Stainless Steel CONSTANT
CS10: For ALL Resistivity ranges 0.05
CS51 LC: For ranges 0-5 µS/ppm & below 0.1
CS51: For ranges between 0-10 & 0- 100 µS/ppm 1.0
See Range Selection Guide, Page 8.
SPECIAL ORDER MODELS — 316 Stainless Steel
CS40 Resistivity/Conductivity/TDS
Valve Insertable 100PSI@150°C
(1.0, 0.1 & 0.05)
CS40HT Above High Temperature Model 250PSI@205°C
CS41 Cond/TDS High Temperature Model 100PSI@150°C
CS41HT Cond/TDS High Temperature Model 250PSI@205°C
CS50 Conductivity/TDS 100PSI@95°C (1.0 & 0.1)
CSA Low Cost Conductivity/TDS - NO Temperature
Compensation 75PSI@60°C (1.0)
CSATC Low Cost Conductivity/TDS - with Temperature
Compensation 75PSI@60°C (1.0)
4. SENSOR OPTIONS
-T Titanium - in place of Stainless Steel
-25 25’ Shielded Cable
-100 100’ Shielded Cable
-PV 1/2" PVDF fitting for CS10 & CS51 ONLY
{replaces polypropylene}
-HPSS 1/2" 316 STAINLESS STEEL fitting
for CS10 & CS51 ONLY (replaces
polypropylene).
-STF Sanitec Fitting for CS10, CS51 & CS51LC. 1/2”
thru 4”. State size, i.e. STF-1/2.
Special Order Options
-WTV Wet-Tap Valve for CS40 (0.1 & 1.0 only)
-JB Junction Box - Class I, Group D, Div. S,
Explosion proof, Weather proof, Aluminum. For
CS40 ONLY.
TEMPERATURE COMPENSATION
Automatic to 25°C, between 32-212°F (0-100°C)
except high temperature models - up to 205°C.
PRESSURE/TEMPERATURE LIMITS
CS10 & CS51 - 100 psi (689.6 kPa) at 212°F (100°C)
For higher limits, see specifications below.
BUSHING
CS51 (LC): Modular Polypropylene threaded 3/4" NPT
CS10: Modular Polypropylene threaded 3/4" NPT
CABLE
Shielded; 10' (3 meters) standard.
25' (7 meters), and
100' (30 meters) lengths also available.
DIMENSIONS
CS51(LC): Metal portion 1.2" (30mm) L; 0.5" (13mm) DIA
CS10: Metal portion 1.2" (30mm) L; 0.5" (13mm) DIA
For other models see sensor selection & specific data sheets for
details.
F. ORDERING INFORMATION
1. HOW TO ORDER AN AQUASWITCH
Choose either an AQUASWITCH I or an AQUASWITCH II.
AQUASWITCH I order as - ASI
No sensor required, skip to How to Order Valve(s), if required.
AQUASWITCH II
EXAMPLE: order as -
MODEL RANGE* OPTIONS
ASIIR — 11 — 4A - PA
Written as — ASIIR-11-4A-PA
This is a Resistivity AQUASWITCH II Monitor/controller with a
0-20MΩ range, a 4-20mA output and a Piezo electric Alarm.
*RANGE SUFFIXES:
See RANGE SELECTION GUIDE, Page 8.
NOTE: AQUASWITCH II model number does not include
sensor. Please specify sensor required when ordering. See How
to Order Sensor.
See How to Order Valve(s).
2. HOW TO ORDER A SENSOR
Add option to model number as in examples below.
EXAMPLE:
MODEL OPTIONS
CS10 — TP-100
Written as — CS10-TP-100
The above is a model CS10 sensor made with Titanium, and a 100
foot cable.
EXAMPLE:
MODEL OPTIONS CS40HT —
01-T-WTV
Written as — CS40-01-T-WTV
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