Testomat Eco

Summary

Product Identification

Testomat ECO® is an online analysis instrument for residual total hardness (water hardness).

Intended Use

The instrument is designed for the automatic determination and monitoring of residual total hardness in water with a pH level above 4. The required measuring range is determined by indicator selection and user programming.

Operating Limits

• Operating Pressure: 0.3 to 8 bar (factory setting). Can be adjusted to 0.3 to 1 bar by modifying the flow controller.
• Water Temperature: 10 °C to 40 °C. For temperatures above 40 °C, a KCN type cooler should be installed.
• Water pH Level: Above 4.0. For pH < 4.0, a special valve block (Art. No. 40018) may be required.

Feed Water Properties

• Heavy Metal Ions: High concentrations of heavy metal ions can influence color reaction. Iron above 0.5 mg/l, copper above 0.1 mg/l, and aluminum above 0.1 mg/l can cause a brownish-red color display.
• Carbonic Acid (CO₂): If the measuring water contains more than 20 mg/l CO₂, erroneous evaluations cannot be excluded. An aerator type R may be necessary.

Performance Specifications

• Menu-driven operation and programming via plain text display.
• Determines total water hardness.
• Freely selectable hardness units: °dH, °f, ppm CaCO₃, or mmol/l.
• High measuring accuracy with a precise piston-dosing pump.
• Extended operating periods with a 500 ml indicator storage bottle.
• Analysis initiation:
  • Automatic interval operation (interval pause settable from 0-99 minutes).
  • Quantity-dependent via impulse water meter/turbine.
  • External analysis stop.
• Two independent limit values with hysteresis (1, 2, or 3 bad analyses) and settable switch functions via two change-over contacts.
• Fault message output via a change-over contact.
• 0/4 - 20 mA current output.

Indicators for Testomat ECO®

Electrical

• Mains Voltage Input: 24 V / 115 V / 230 V (refer to rating plate).
• Mains Output for Consumers: Max. 4 A.
• Relay Outputs (LV1, LV2, Alarm): Max. 240 VAC, 4 A.
• Current Interface: 0/4 - 20 mA (galvanically separated).
• Turbine Power Output: +12 V for Hall sensor (turbine), Max. output current 20 mA.

Mechanical / Hydraulic

• Water Inlet Connection: Standard for plastic hoses 6/4 x 1 (6 mm OD / 4 mm ID, 1 mm wall thickness). Maximum hose length: 5 m.
• Water Outlet Connection: For outlet hose with 12 mm internal diameter.
• Indicator Bottle Size: 500 ml (standard).

Commissioning

• Ensure the instrument is only used with Heyl Testomat® indicators.
• Indicator extraction is automatic via the DOSIClip pump. The intake and transport hoses must be filled with indicator.
• Water inlet should be opened slowly. The measuring chamber should fill in 2 to 6 seconds.

Instrument Settings and Data Input

Display Functions

• Limit Value Status Displays (1 & 2): Illuminate red if limit value is reached/exceeded; green if below the limit value.
• Text Display (2 lines): Shows current analysis result, statuses, and programming data. Line 1 displays the measured value (< or > for out-of-range). Line 2 displays set limit values LV1 and LV2.
• Alarm (red LED): Indicates malfunctioning, error, or warning message.
• Analysis Message (yellow LED): Indicates a current analysis is in progress.
• "BOB operation" Symbol (╘╛): Displayed when "operation without permanent supervision" is active.

Operating Elements and Function Keys

• Cursor Block: For navigating menus, selecting functions, and entering data.
• "ENTER" Key: Confirms selections and data input.
• "Manual" Key: Manually starts an analysis.
• "STANDBY" Key: Sets the instrument to standby mode.
• "Horn" Key: Acknowledges error and warning messages.
• "M" Key: Opens the programming menu.
• "i" Key: Retrieves instrument information and settings.

Operating System Programming

• Functions and data are entered via menus using the cursor block and "ENTER" key.
• An asterisk (*) indicates an active function or selection.

Basic Program Data

• Type of Reagent: Select indicator bottle size (100ml or 500ml) and indicator type (TH2005, TH2025, TH2100, TH2250). Factory setting: 500ml bottle, TH2005 indicator.
• Operating Mode: Time control, quantity control (via water meter), or a combination.
• Time Control: Internal start via timer.
• Analysis Interval (Interval Pause): Settable from 0 to 99 minutes. The total analysis interval includes flushing time and analysis duration.
• Quantity Control: Analysis triggered after a programmed water quantity is measured (1-9999 litres).
• Water Meter Type: Select water meter constant (litre/impulse) or reciprocal value (Imp/l). Factory setting: 100 litres/impulse.
• Quantity Control/Time Priority: Defines which control method has priority.
• Display Unit: Selectable units are °dH, °f, ppm CaCO₃, and mmol/l. Factory setting: °dH.
• Flushing Time: Settable in seconds (00-99). Recommended > 60 seconds for longer downtimes or intervals.

Limit Value Monitoring

• Two limit values (LV1 and LV2) can be programmed.
• Hysteresis: Suppression of the first, second, or third "bad" analysis (setting 1, 2, or 3). Default: 1.
• Switch Functions (LV1/LV2):
  • 0: Duration (output switches while limit is exceeded).
  • 1: Impulse (output switches for a settable time 't').
  • 2: Interval (output switches at intervals 't' while limit is exceeded).
  • 3: Two-point (for LV1 only, requires different LV1 and LV2 values).

BOB Operation (Operation Without Permanent Supervision)

• Enables continuous monitoring of the indicator level for up to 72 hours.
• Requires time-controlled operating mode.
• Outputs an alarm message if the indicator level is insufficient for the BOB period.

Description of Signal Inputs/Outputs

• Stop Input (Terminals 18, 19): External analysis stop. Programmable as normally closed or normally open. Prevents analysis start or stops a current analysis. Manual start has priority.
• Water Meter Input (Terminals 20, 21): For quantity-dependent analysis triggering.
• Current Interface (Terminals 22, 23): 0/4 - 20 mA output.
• +12 V Output (Terminal 24): For Hall sensor (turbine).

Relay Outputs

• LV1 and LV2 Limit Value Outputs (Terminals 9-11, 12-14): Two independent change-over contacts for limit value monitoring.
• Alarm/Message Output (Terminals 15-17): Change-over contact for fault message output.

Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror