Sewage Leak Detector DC 420
sewage leak detector with integrated data storage / 
valve block for faultless connection of all components / USB interface /
Thermal printer, bladder seal and testing bladder ... optionally purchasable

The sewage leak detector DC 420 is a precise. multifunctional device for registration of any kind of differential pressure, absolute pressure, humidity, temperature. The extremely large dynamic range of the sewage leak detector allows besides highly sensitive measurements of smallest pressures in Pascal-ranges for gas tension- and compression measurements also the leak detection of sewage-pipes according to EN 1610. A maximum measuring range of up to 2 Bar and a bursting pressure of 3 Bar guarantees enough safety even for higher pressure ranges. During all measurement the operator is navigated through the process by orders written on the display.  Thus the sewage leak detector can be also used for (room-) climate measurements. Therefore in addition to the pressure sensor there are also serially a temperature sensor and optionally a humidity sensor integrated. Furthermore the application range of the sewage leak detector can be extended by an external temperature sensor. All values can be logged  for up to several years depending on the chosen sampling rate and be transferred via an integrated USB interface to a computer. If there have one or more measurements been performed, they can be assigned to the relevant customer via the menu navigation. Measuring protocols can be printed, even with the company's label, right away on an optionally purchasable thermal printer. There can be also switched-on a continuous data transfer via the setup-menu, so that during the measuring procedures all four values (pressure, temperature internally and externally, relative humidity) can be transferred to a computer with the relevant channel numbers. The extremely low power consumption of the sewage leak detector is caused by a brand new processor technology, where the power consumption is adjusted to the measuring task dynamically. Even within the operation mode with maximum power consumption (6 mA) a continuous operation time of more than 300 hours can be reached due to four mignon cells, type AA. Within the logger operation mode the operation time can be even enhanced to several years (4680 measurements) by alternating the interval to 4 hours between the measurements, without any battery change or using up the storage capacity. The sewage leak detector can be applied for gasiform mediums (air or inert gas) as well as for liquids, such as water or heat oil. Therefore it should be considered that remains of the liquids within the pressure ports might falsify the measuring results. Therefore the sewage leak detector should not be used for measurements of gasses any more after it has been used for liquids already. In case that you should have more questions regarding the Sewage Leak Detector DC 420, please read the following technical data, use our contact form or call us: UK customers +44(0) 23 809 870 30 / US customers +1-410-387-7703. Our technicians and engineers will gladly advise you regarding the leak detectors or all other products in the field of Control Systems, Laboratory Equipment, Measuring Instruments or Scales and Balances of PCE Instruments Ltd.

- Self-explaining menu navigation
- Intelligent valve block
- With USB interface

- Data transfer to computer via USB 
- Select customer from data memory
- For Sewerages

Technical specifications

Measuring differential pressure (temperature-compensated Piezo- Bridge

Measuring range

± 2 bar

Resolution

1 Pa within range of –210 hPa ... +210 hPa,
otherwise 10 Pa

Accuracy

< 3 % from value, within range of < ± 200 Pa 
less than ± 6 Pa

Internal measurement of temperature (NTC)

Measuring range

-20 ... +60 °C

Resolution

+0.1 °C

Accuracy

< ± 1 °C

External temperature measurement (optional)

Measuring range

2 channels, -20.0 ... +800.0 °C

Resolution

+0.1 °C

Accuracy

< ±2 °C within range of  0°C ... +133°C, 
otherwise 1.5 % from value, gem. EN 50379-2

T98

< 120 seconds at 1.5 m/s

Humidity measurement (optional

Measuring range

0 ... 100 % r.H. non condensing

Resolution

1 %

Accuracy

< ±2 % from 0 ... 90 %, otherwise < 3 %

Date and time

Noted on measuring protocols

Absolute pressure (optional

Measuring range 

300 ... 1100 hPa

Resolution

0.1 hPa

Accuracy

± 1.5 hPa

Calculated values

Pressure units

Conversion into hPa, Pa, mmH2O, PSI, inwc, bar, mbar according to general conversion rules

Temperature units

Conversion from °C into °F according to general conversion rules

Pipeline volume

0.0 ... 1000.0 l

Pressure drop

Leakage detection of sewerages according to DIN EN 1610

Logger function

Capacity

9999 measurements with values for pressure and temperature (if external sensors are connected) within a selectable measuring interval between 1 second and 24 hours can be saved on the internal data storage

USB data transfer

online data, permanent

Selection of sampling intervals

within the range of  1 second up to 24 hours intervals selectable

General information

Power Supply

Four mignon cells, type AA or dry-cell batteries

Operation mode

approx. 60 mA

OFF- mode and operating logger 

approx. 45 μA
for clock and processor

Interfaces

USB- (COM-Port) data transfer to computer

Storing temperature

-20 ...+60 °C

Operating temperature

-5 ... +40 °C

Weight

approx. 450 g, magnetic clamp integrated

Dimensions

80 x 225 x 60 mm

Internal data storage

2 MB

Delivery content

Optional equipment

Wöhler TD 100 Thermal high-speed printer
(with 1 role thermal paper and 4 batteries) to print the results right away (e.g. to document the measuring data at sight).
Type of paper: Thermal paper, 
                     paper width: 57 mm
                     refill paper can be reordered

Wöhler computer software
The Wöhler analysis computer software is made for evaluation of measuring data of the Wöhler DC 410, DC 420, DC 430 as well as the Wöhler DP 600. 
Delivery content: CD-ROM with Wöhler Software

Bladder seal and test bladder
with gas ducts having a caliber of  65-100 mm or 75 - 150 mm

Similar products to the Sewage Leak Detector DC 420

Contact:
PCE Instruments UK Limited
Unit 11 Southpoint Business Park
Ensign Way, Southampton
United Kingdom, SO31 4RF
Phone: +44(0) 23 809 870 30
Fax: +44(0) 23 809 870 39

Contact:
PCE Americas Inc.
1201 Jupiter Park Drive, Suite 8
Jupiter 33458 FL
USA
Phone: +1-410-387-7703
Fax: +1-410-387-7714