Harvard Apparatus Model 11 Plus Single ringe Pum CLEARANCE! As-Is

Harvard Apparatus Model 11 Plus Single Syringe Pump

***This device was tested for basic functionality and meets specifications. Unit has slight wear from normal use. Buyer can expect a working machine and 30-day warranty. Software NOT included. See photos for details.

 The Pump '11' Plus is designed as a low cost, single or dual syringe infusion pump capable of low to moderate back pressures. The Pump ‘11’ Plus is standard with an infuse limit switch and anti-siphon brackets. Both the single and dual syringe versions are available with our serial communication option package that includes dual RS232, reversing switch, and a withdraw limit switch.

The pump can hold syringes of any make from 0.5 µl to 50/60ml for the single syringe version and from 0.5 µl to 10ml for the dual syringe version. The diameter of the syringes is entered via the keypad and the internal microprocessor drives a precision stepper motor to produce accurate fluid flow. Nonvolatile memory stores the last syringe diameter and flow rate along with other.
configuration data. The “Power Failure Mode” can be set to either turn the pump off in the event of
power failure or to resume pumping when power resumes.

Features:

Bright Display and Easy-To-Use Interface

• A two-line 16-character vacuum fluorescent display along with six membrane keys
  make this a most attractive but powerful, easy-to-use syringe pump. Only two
  entries required to start pumping; syringe Inside Diameter (mm) and pumping flow.
  rates. The Flow rate can be changed while the Pump is running.

Two Modes of Operation, Constant Flow Rate and Volume Dispense

• The Pump '11' Plus will operate continuously in RATE mode or accurately.
  dispense a specific amount of fluid in VOLUME mode.

Smooth Flow

• Enhanced micro-stepping pump profiles deliver very smooth and consistent flow,
  that is virtually pulse free.

Nonvolatile Memory

• The pump remembers its last syringe size, flow rate used and configuration settings.

Power Fail Mode

• In a power failure the Pump can either RESUME or STOP pumping when power
  is returned.
  
  

Manufacturer's Specifications: 

• Type Microprocessor single or dual syringe
• Syringe/Size for Pump ‘11’
  • with Holder For: Plastic or glass
  • 1 Syringe From 0.5 µ l to 50/60 ml
  • 2 Syringe From 0.5 µ l to 10 ml
• Flow Rate Range:
  • Minimum / Maximum 0.0014 µ l/hr. with 0.5 µ l syringe / 26.55 ml/min with 50/60 ml syringe
• Flow Rate Accuracy + 0.5%
• Calibration Automatic, enter syringe size up to 35 mm Inside Diameter
• Display 2-line, 16-character vacuum, fluorescent display and green run led.
• Nonvolatile Memory Stores diameter, rate and configuration settings
• Maximum Force 8 kg (17 lb.)
• Maximum Pressure 8 psi. with 50/60 cc syringe; 100 psi. with 1 ml syringe
• Drive Motor 0.9° step angle motor
• Step Rate: Minimum / Maximum 1 pulse in 27.6 sec / 200 steps/sec
• Pusher Advance/Step 0.33 µm pusher advance per motor step
• Pusher Travel Rate: Minimum / Maximum 0.7 µm/min / 15 mm/min
• Dynamic Range 1 to 16,384
• Leakage to Ground Typically < 150 µA.
• Ground Resistance Typically < 0.05 ohms
• Input Power 12 VDC 1.5Amps
• Input Power Connection 2.5mm ID x 5.5mm OD male plug
• Power Supply 100/250 VAC, 50/60 Hz, 18 Watts Universal Power