60
9. Manual control mode
You can control devices connected to Relay A or Relay B from the front panel of this
controller. Automatic mode is the mode that the controller normally enters when
you switch it on. In Automatic mode, the controller’s set-point values actuate the
relays.
In Manual mode, you have manual control of your relays so you can prime your
pump or check pump status without operating the entire system.
To enter manual mode:
1.
Press the Relay Control (auto/manu) key.
The upper display will show “000”;
the lower display will show “S.Cd” to prompt you to enter the Advanced Set-up
Code.
2.
Press the
▲
and
▼
keys
to scroll the upper display until it reads “22”.
3.
Press the ENTER key.
The Manual indicator by the Relay Control key will light.
NOTE:
Pressing ENTER at a value other than “22” will cause the controller to revert
to the Measurement mode, and the relays will remain in automatic mode.
4.
Press the Relay Selection key
to select either Relay A or Relay B. The LED next
to the currently selected relay (A or B) will light. The upper display will read the
current measured value. The lower display will show “oFF” or “on” depending
on the relay status of the currently selected relay.
5.
Press the
▲
and
▼
keys
to change the Relay on/off status. The LED indicators at
the right of the controller will also change between Red and Green to indicate
Relay status.
NOTE:
If you wish to manually change the status of both relays, press the RELAY
SELECTION key at this point and repeat step 5 for the second relay. This
first relay will remain under manual control while you are setting the second
relay.
6.
Press the RELAY CONTROL (auto/manu) key
to return to Measurement mode.
The relays are now back under automatic control.
10. Technical Specifications
Range no.
Range
Resolution
Cell Constant (K)
Conductivity controllers
1
0.000 to 2.000 µS
0.001 µS
0.01
2
0.00 to 20.00 µS
0.01 µS
0.01
3
0.00 to 20.00 µS
0.01 µS
0.10
4
0.0 to 200.0 µS
0.1 µS
0.10
5
0.0 to 200.0 µS
0.1 µS
1.0
6
0 to 2000 µS
1 µS
1.0
7
0 to 5000 µS
5 µS
1.0
8
0.00 to 20.00 mS
0.01 mS
1.0
9
0.0 to 200.0 mS
0.1 mS
10.0
0
0.0 to 200.0 mS
0.1 mS
1.0
Resistivity controllers
1
0.0 to 20.00 M
Ω
0.01 M
Ω
0.01
2
0.000 to 1.999 M
Ω
0.001 M
Ω
0.10
61
Control type:
on/off
Control accuracy:
±0.5% full-scale
Number of inputs:
one
Number of set points:
two
Output:
Control: 2 SPDT relays, 6 A @ 110 VAC,
250 VAC max
Alarm: 1 SPDT relay, 6 A @ 110 VAC,
250 VAC max
Current: isolated 0-20/4-20 mA, with
20% to 100% full-scale scalable
boundaries, 600
Ω
max. load
Hysteresis (dead band):
0 to 10% of range
Relay delay:
selectable, 0 to 2000 seconds
Electrical isolation:
yes, galvanically
Temperature:
Range: 0 to 100°C
Resolution: 0.1°C
Accuracy: ±0.5°C
Sensor: 100
Ω
or 1000
Ω
Platinum RTD,
terminal strip
Temperature compensation:
Automatic/manual from –9.9 to 125°C
Temperature coefficient:
Conductivity: linear 0.00 to 10.00% per °C
Resistivity: ultra-pure/linear 0.00 to
10.00% per °C
Calibration:
Conductivity or resistivity: one point
Temperature: offset up to ±5°C
Password protection:
two level protection
with four-digit password lockout;
first level gives calibration access, second
level allows set-up parameter changes
Display:
Dual-line LCD;
4-digit upper and 3
1
⁄
2
-digit lower
Operating temperature:
14 to 140°F
(–10 to 60°C)
Housing:
IP54 front;
1
⁄
4
DIN size
Dimensions:
Unit only: 3
13
⁄
16
"W x 3
13
⁄
16
"H x 6
15
⁄
16
"D
(9.6 x 9.6 x 17.5 cm)
Boxed: 6
1
⁄
2
"W x 6"H x 9
1
⁄
4
"D
(16.5 x 15.2 x 23.5 cm)
Panel cut-out:
3
3
⁄
8
"W x 3
3
⁄
8
"H (9.2 x 9.2 cm)
Weight:
Unit only: 1.5 lbs (0.7 kg)
Boxed: 2.5 lbs (1.2 kg)
